added PostFX Library by Andy J Edmonds

This adds a selection of PostFx`s to Greed

*Pixelation
*Blurred Vision
*Dream View
*Cross Stitch
*Posterisation
*Night Vision
*Chromatic Aberration
*RGB sliders
*Zoom Blur
*Negative
*Black and White
*Monochrome
*Edge Detection

Usage:
Press alt-m in-game to bring up the control GUI. The effects can of
course be controlled via script - just see PFX_Library.cs for the
PostEffect names as well as the variables to control the look of them.