Added a bunch of shit, started work on converting our depth to linear instead of exponential.
Added some comments regarding linear depth
Merge branch 'lemmiwip' of https://github.com/Lemmibl/Engine

Conflicts:
	Engine/DRCompose.psh
	Engine/DRDirectionalLight.cpp
	Engine/DRDirectionalLight.h
	Engine/Lemmi2DAABB.h
	Engine/MCubesGBufferShader.cpp
	Engine/MCubesGBufferShader.h
	Engine/Renderer.cpp
	Engine/shader-error.txt