This update implements our new expression evaluator/parser, Paralithic. Paralithic allows user-defined expressions to achieve performance matching hard-coded math, significantly boosting performance in base terrain generation and cave generation. In the default config, base generation improvements from 15-30% are common. In configs with more complex equations, higher performance improvements may be seen.

This update also adds a new normalizer type, called CLAMP, used to clamp an input function.

The default config now has 2 new biomes, Yellowstone and Sky Islands. Both are very rare.

This update should maintain parity with old worlds/configs. The new default config will break parity, however, so do not reset configs on an existing world.