[Feature] Chance increase setting function

[TOWUK]

Content

I have an idea, instead of installing a data package to choose from, to add a function for the admin (OP) that adjusts the value of the chance, and after that changes the value of generation on new chunks that have not yet been uploaded.

Necessarity

one package - and more options to adjust without reinstalling on different packages, if desired.

[wen-wen520]

That's should be a good idea, but I don't think that's easy for functions to modify configs in the worldgen folder. If you have some method, just provide more details, thanks.