More specific Biome IDs to help sort out sub biomes for Modded Mob Spawns

I think, for long term mod compatibility and general maintenance, it would help a lot if biome IDs were made to be more specific rather than just general types of biomes.

Stuff like turning the singular "Forest" biome ID into all the different types of forests, like oak, birch, dark oak, ect.

It would help cut down on weeks worth of maintenance for mods every time they have to update, imo.