Merge pull request #216 from One3rd/master

Cartoon + monochrome shader (2nd attempt)
[Post-processing] logic rework, cleaning, & prelim shader code for palette textures
[Post-processing] Added my own Cel Shader to post_asmodean.fx, Upon request.
Merge pull request #218 from Asmodean-/master

[Post-processing] logic rework, cleaning, & added cel shading.