BUILD_CPU has been replaced by D3_ARCH, which is also set by CMake on
most platforms, except for Windows, there it's set in neo/sys/platform.h
because CMake is not able to tell us what CPU platforms it's targeting
(for other platforms we parse the output of gcc/clang's -dumpmachine
option, but for MSVC that's not an option, of course)
If REPRODUCIBLE_BUILD is enabled in CMake, the code will not use
__DATE__ or __TIME__ macros, but instead hardcoded values.
Wherever __DATE__ or __TIME__ were previously used, we now use
ID__DATE__ and ID__TIME__, which are either set to hardcoded values or
to __DATE__ and __TIME__ in neo/framework/Licensee.h.
Added r_aspectratio -1 which means "auto" (as new default).
This mode sets fov_x and fov_y according to screen-width/height.
=> No need to set r_aspectratio manually anymore (assuming your display's
pixels are about square).
The standard aspect ratios can still be enforced as before, though.
Don't include the lazy precompiled.h everywhere, only what's
required for the compilation unit.
platform.h needs to be included instead to provide all essential
defines and types.
All includes use the relative path to the neo or the game
specific root.
Move all idlib related includes from idlib/Lib.h to precompiled.h.
precompiled.h still exists for the MFC stuff in tools/.
Add some missing header guards.
