Beginnings of MCPatcher (mostly CTM and custom colors) support, GUI textures and more.

• MCPatcher features
  • bookshelf alternates
  • top and bottom greebles for quartz pillars
  • unique wood fence texture
  • grass, redstone, water color maps
• generic GUI textures (but not containers or inventories)
• newly-required animation definitions for all animated textures
• removed custom fonts until I can figure out how character widths are determined in vanilla