Moved shadow mapping code from composition stage back to directional light stage. Also fixed some logic bugs in renderer update loop.
It's aaaaaaalmost working now!
Some further work.
Commenting some more.
Added link to useful paper
So, so very close now!
SHADOW MAPPING WORKSSSSSS!!!!!!
Merge branch 'lemmiwip' of https://github.com/Lemmibl/Engine

Conflicts:
	Engine/DRCompose.cpp
	Engine/DRGBuffer.psh
	Engine/DRGBuffer.vsh
	Engine/Engine.vcxproj
	Engine/Engine.vcxproj.filters
	Engine/Renderer.cpp
	Engine/shader-error.txt
Finally added everything together, unfucked the skysphere, merged shadowmap and triplanar projection projects. Everything is good.
Hopefully it will let me commit this time. Everything is fixed.