Variants-CIT v2.5.0+1.21.1

Added the painting_variant module.
Added the requiredEnchantments parameter to the enchantment module. This makes it possible to have CITs based on multiple enchantments, using multiple modules. (See wiki.)
Modules should now be stored in the folder variants-cit (mod's id) instead of variant-cits (misspelled). Modules in the old directory will still work, but support will be dropped in a distant future.