Codechange: automatic adding of _t to (u)int types, and WChar to char32_t

for i in `find src -type f|grep -v 3rdparty/fmt|grep -v 3rdparty/catch2|grep -v 3rdparty/opengl|grep -v stdafx.h`; do sed 's/uint16& /uint16 \&/g;s/int8\([ >*),;[]\)/int8_t\1/g;s/int16\([ >*),;[]\)/int16_t\1/g;s/int32\([ >*),;[]\)/int32_t\1/g;s/int64\([ >*),;[]\)/int64_t\1/g;s/ uint32(/ uint32_t(/g;s/_uint8_t/_uint8/;s/Uint8_t/Uint8/;s/ft_int64_t/ft_int64/g;s/uint64$/uint64_t/;s/WChar/char32_t/g;s/char32_t char32_t/char32_t WChar/' -i $i; done

Codechange: Revenue is not the same as Income

Income is revenue minus costs. Let's name things correctly (without breaking the script API).

Fix #6676: Prevent helicopters from stopping in midair during some kinds of landing

This adds a new flag that gets stored in the savegame, but it should still be compatible both ways, hence no save version bump.

Change: Remove direction parameter from Vehicle::UpdateDeltaXY. (#6792)

The value is either unused or always the same as this->direction.

(svn r17897) -Fix [FS#3255]: CB15 and CB36 (capacity) were not always called when they should.
-Codechange: Move capacity calculation to a single function for all vehicle types, so the behaviour can be kept consistent easier.

(svn r9040) -Codechange: the build window and CmdBuildAircraft() now shares the code to figure out if an aircraft is buildable in the hangar in question
This should help ensuring that the build command and the list are consistent in what aircraft are buildable

(svn r8822) -Fix

Variable scope, const

(svn r8661) -Fix: [depot windows] Enlarge the blocks in the depot window if a sprite is too big to fit (ships and aircraft only)
-Codechange: depot windows default now makes a 1x1 matrix and resize the window by block size*number of blocks
This will make less vehicle type specific code and easier to read resizing based on sprite sizes