Change: add vcpkg.json to instruct vcpkg what dependencies we require

This works on all OSes, making it far simpler for any developer
to jump in. Just install vcpkg, run "vcpkg install" in our root,
and you have all the dependencies.

Fix #11649: Ignore disabling a widget that does not exist. (#11652)

Orders window has different widget layouts depending on vehicle type
which don't all have the same widgets, and therefore it tries to disable
widgets that might not exist.

Restore the old behaviour of ignoring such requests, instead of crashing.

Codechange: Replace mishmash of types for widget index with WidgetID.

Indices were stored as int, but often passed around as uint/uint8_t and casts.

Now they should all use WidgetID.

Fix #11643: Empty area at top of survey preview. (#11647)

Empty area at the top of some textfile windows due to calling
SetDisplayedPlane() after calling FinishInitNested(), and/or changing
the displayed plane and not calling ReInit() after.

This was previously hidden by CheckForMissingGlyphs() reinitialising
all windows anyway.

Codechange: Use std::map to provide indexed widget access.

This removes the need to determine the biggest widget index and replaces C-style memory handling.

Codechange: Rename nested array to widget lookup.

This changes from naming storage-type to naming functionality.

* `FillNestedArray` is renamed to `FillWidgetLookup`.
* `Window::nested_array` is renamed to `Window::widget_lookup`.
* `array` parameter renamed as well.

Update: Translations from eints
danish: 3 changes by bscargo
dutch: 10 changes by Afoklala

Codechange: Remove deferred nested_array initialization path. (#11640)

Having two ways (`FillNestedArray` and `SetupSmallestSize`) to initialize
`Window::nested_array` introduces confusion.

Instead, make `FillNestedArray` the canonical way, always call it, and remove
init_array from `SetupSmallestSize`.

Fix: Changing default livery did not propagate to group liveries.

#11614 attempted to address this but did not handle 2CC properly, and changes to the default livery were not handled.

Fix #11629: AirportGetNearestTown for rotated airports (#11631)

Add rotation parameter to AirportGetNearestTown
Add wrapper for existing stations
Remove unnecessary iterator cloning

Codechange: Replace reliability magic numbers with constants.

These are derived as a percentage of UINT16_MAX.

Update: Translations from eints
english (au): 11 changes by krysclarke
danish: 9 changes by bscargo
portuguese (brazilian): 10 changes by pasantoro

Feature: Toyland-specific river graphics (#11523)

Replaces the old solution of reusing temperate sprites for toyland.

Update: Translations from eints
english (au): 2 changes by krysclarke
chinese (simplified): 37 changes by WenSimEHRP
romanian: 28 changes by bnegrut
russian: 13 changes by Ln-Wolf
finnish: 36 changes by hpiirai
danish: 16 changes by bscargo
dutch: 17 changes by Afoklala

Fix 9ce1626b: Some blitters have `bp->remap` aliased to `remap` for performance. (#11626)

While this probably doesn't make a huge difference for the custom transparent remap code path, the alias is there so use it.

Change: Scale sprites to requested highest resolution level. (#11600)

Sprites from graphics sets which only provide high resolution sprites are now scaled up from scaled down versions.

Change: Support custom transparency remaps with 32bpp blitters.

This closes a 15 year old TODO...

Add: 32bpp-to-8bpp palette index lookup.

Lookups are calculated on demand and caches in a 256KB in-memory table.

Codechange: Perform simpler comparison first when checking for palette updates.

This avoids unnecessarily comparing contents of an array.

Change: Remove hardcoded minimum sizes and allow resize.

This stops the window being needlessly large.

Change: Move colour selection dropdowns to bottom of window.

This stops them looking similar to how filter controls are used elsewhere,
and matches action dropdowns on other windows.

Fix #11442: "default" colour in group colour window is not updated when changing master colour (#11614)

Updated SelectCompanyLiveryWindow.DrawWidget method to check if a group's livery.in_use 0 bit is set, rendering the company's default colour if it has not been.

Fix #11515: Zoom level could wrap around when changing interface scale. (#11615)

This happened due to converting the new value to unsigned before clamping instead of after.

Fix: Update widget dimensions before updating viewport signs. (#11611)

Viewport signs used fullbevel WidgetDimensions before it was updated for the new interface scale.

Codechange: Replace pointer to Sprite array with reference to SpriteCollection. (#11580)

Add `SpriteLoader::SpriteCollection` type which is an array of `SpriteLoad::Sprite`.

This removes the ambiguity of what `SpriteLoader::Sprite *` is pointing to,
and cleans up mismatches using both dereference -> and array access [] for the
same object.

Fix: Draw unavailable mask over picker sprite instead of behind it.

This makes these disabled picker buttons consistent with other disabled buttons.

Codechange: Add Rect version of FillDrawPixelInfo().

This simplifies most callers as they longer have to split out a rect.

Add: Hotkey to focus industry directory filter box

Co-authored-by: Tyler Trahan <tyler@tylertrahan.com>

Add: Hotkey to focus town directory filter box

Co-authored-by: Tyler Trahan <tyler@tylertrahan.com>

Update: Translations from eints
vietnamese: 1 change by KhoiCanDev
danish: 4 changes by bscargo

Fix #10452: Don't let AyStar max_search_nodes unattended when initializing (#11544)

Add a constant with the default value of 10000 and have the pathfinding settings refer to it.

Add a preventative method to AyStar when it's initializing, to limit the number of max_search_nodes if left unattended.

Update: Translations from eints
vietnamese: 20 changes by KhoiCanDev
italian: 5 changes by Rivarossi

Update: Translations from eints
english (au): 17 changes by krysclarke
english (us): 17 changes by 2TallTyler
italian: 30 changes by Rivarossi
russian: 17 changes by Ln-Wolf
french: 36 changes by ottdfevr
portuguese (brazilian): 30 changes by pasantoro

Update: Translations from eints
english (us): 19 changes by 2TallTyler
vietnamese: 14 changes by KhoiCanDev
turkish: 26 changes by BeratSJ
dutch: 19 changes by Afoklala

Change: Don't mention TerraGenesis in setting helptexts

We no longer show the land generator in the World Generation GUI, so this is less important to explain in tooltips.

Fix #11585: Crash when cleaning AI/GS with nested AsyncMode.

Do not throw sanity check when in_shutdown is true. This is also applied to
ExecMode and TestMode as they follow the same pattern.

Update: Translations from eints
korean: 20 changes by telk5093
danish: 13 changes by bscargo
portuguese (brazilian): 18 changes by pasantoro

Codechange: Use MakeParameters with GetNextParameter in FormatString (#11583)

Instead of StringParameters subspan, to avoid GSs being able to
cause subspan boundary assertion failures

Codechange: Cargo filters no longer take an index. (#11582)

Update naming of functions to reflect that parameter is now a cargoid.

Update: Translations from eints
english (au): 18 changes by krysclarke
russian: 18 changes by Ln-Wolf

Fix #11577: Extra viewport opened in wrong location. (#11578)

ExtraViewportWindow calls IninitializeViewport() with focus as 0, which is ambiguous as focus should be either a TileIndex or a VehicleID.

Instead, pass the tile and let InitializeViewport() handle setting all the coordinates.

Change: Be selective about clearing sprite/font caches on interface scale change. (#11576)

Sprite cache contains all zoom levels anyway, so does not need to be reloaded.

Font cache does not need to be clear if the font zoom hasn't changed, i.e. when changing the max sprite zoom level setting.

Update: Translations from eints
english (au): 1 change by krysclarke
italian: 1 change by Rivarossi
german: 7 changes by SecretIdetity
russian: 1 change by Ln-Wolf
danish: 1 change by bscargo
french: 1 change by glx22

Fix e2425b7: Sprites no longer refreshed if max zoom level changed.

Handle this via AdjustGUIZoom() instead.

Fix e2425b7: WidgetDimensions and depot sizes not set up if blitter forced.

Set up WidgetDimensions and depot sizes during InitWindowSystem().

Change: Hide bevel for resizeable sparse layout windows. (#11572)

When clicked, the button is still highlighted to show that it is active.

The bevel is controlled with widget_data by RWV_SHOW_BEVEL or RWV_HIDE_BEVEL values.

Fix: Prevent overflow when calculating max town noise (#11564)

Max town noise could overflow if the population was high enough. The value is now clamped.

Fix #11352: Draw all network server info as multiline strings. (#11567)

This also allows the 'header' (which is not actually a widget) to grow
as necessary to fit the server name.

Fix: AirportGetNearestTown incorrectly assumed first TileIterator result was origin. (#11565)

Not all TileIterators are equal, and some do not start at the top-corner, so the perimeter check was wrong. As the caller already has thie origin tile, use that instead.

Fix: Ensure saveload type match variable type.

This either changes the saveload definition or changes the variable depending on which makes more sense.