fragment_light.elf: works
toon_shading.elf: works
Cave story 3d: no longer too dark, but the intro has a bug
Rabbids: positional lighting fixes, looks better
Mario 3d land: ground is not too bright, mario is not yellow
Kirby triple deluxe: Kirby is not shining like before
Luigis mansion: better but luigi lighting is way off and spotlight sometimes turns off
Captain Toad: bit better, still too bright
Omega ruby: looks fine to me
Pokemon Super Mystery Dungeon: looks fine to me
Lego batman: didn't try but should work?
Rather than declaring a big C++ literal for these strings, they are now
proper `.vert` and `.frag` files that will become embedded into the
application at build-time. It also allows for clang-format to format the
glsl files the same as our C++ code. CMake will also automatically track
and re-embed the file if it detects that the glsl source files have
changed since the last build. Ex, making a change to
`opengl_display.frag` and compiling will automatically recompile and
link the resource-target that it is associated with.
