Alternate Terrain Generation

WARNING: For the brave or foolhardy

This build is an experimental, incomplete version of biome configuration support. Pretty much everything about biome generation can be tweaked in the dedicated server environment via generator-settings in server.properties, but there's no way to change anything in SSP. It's primarily being released because it's for Forgecraft. No 1.10.2 version because this is all pretty nasty and FC is running 1.11.2.