This is a huge change, and basically breaks everything (as per usual!)
First of, this includes stuff like shaders so anything involving those
are broken and then fixed. A new BuildAssets cmake file is added to
aid in running AssetCompiler, and it seems to work fine on the engine
base assets.
The File API will eventually be revamped to handle this new way of
organizing the files and domains will eventually be gotten rid of all
together since I probably will replace it with game directory
priorities. As it stands right now, there isn't a way to easily
replace say - render_options.cfg with your own game-specific version.
Apple builds are probably broken by this commit (since I'm moving
around content and shader directories) to be fixed later.
Now it's even simpler, and it now generates multiple
shader languages at once! The copying mechanism is now
much simpler on non-mac platforms as well. HLSL is also now a supported shader target language.
This is laying some groundwork for a much better way
of determining the best GFX api to use at runtime, and
making it easier to support more GFX backends in the future.
This is shipped by SDL2 itself, so it should be the preferred way
of finding it. Since SDL2 does not ship it in their Windows
development libraries, we still need to use the regular Find module.
