[Feature] Alexs caves compatibility

[x] I have checked that I am on the latest version of Terra.
[x] I have searched github for similar features requests, including closed ones, and found none.
[x] I believe this is within the scope of Terra.
[x] This feature request is for all of Terra, and isn't something that should be implemented by a pack or addon.

Feature Description

Alexs caves biomes generate in a terra world.

I can play Alexs caves with terra

I dont care if the alexs caves biomes blend is strange

I dont know

Yes, Alexs Caves is on forge, but i use terra on forge thanks of Sinytra-Connector