Reduce v2.0, (c) Andrew Harvey c9607776@engmail.newcastle.edu.au

-Variable Glenz transparency
-Variable number of shades and tints
-Variable shade and tint colours
-Posturization
-Diffusion dithering
-Saves quantization tree

-Quantizes any number of 256 colour PCX files to one palette
-Generates shading table
-Generates glenz table
-Friendly to the environment
-Some asm source code
