Parity with old worlds/configs will be broken!

This version completely redoes biome distribution to use our new Biome Pipeline system. It also adds many new options to noise configurations, and redoes image generation.

• Biome Pipeline
  The biome pipeline is a new biome distribution system that is much more powerful than the previous Biome Grid system. It uses a biome source to provide base biomes, then passes biomes through stages to mutate/expand selection. This allows for much more natural distribution of biomes, and makes adding new biomes much easier.
• Image Generation Changes
  Image generation now uses color matching. Each biome now has a color config attribute. When using image generation, the biome at a location is chosen based on which biome most closely matches the color of the image.
• Noise Config Changes
  Noise configs now have support for using images as noise functions, as well as normal redistribution options. Many more cellular noise return types have also been added.
• Biome Blending Changes
  The biome blending algorithm has been completely rewritten to allow per-biome blending distances, and to make blending much more natural.

Many biome additions to the default config have been made:

• Bamboo Jungles
• Coral Reefs
• Mushroom Islands

None of these would have been easily achievable with the old Biome Grid system.

Parity with old worlds/configs will be broken!