Variants-CIT

• Ported to MC 1.21.2, marked previous branch as incompatible.

• 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.

• Modules may now automatically generate models based on provided textures.
• Optimized some modules, considerably reducing how often they recompute an item's model.
• Fixed Trident and Spyglass (in stack form) not being affected by CITs.

• It's now possible for multiple modules to coexist on the same item.
• Added the module enchantment for tools and armours. (Single enchantment)
• custom_data may now search nested pathes. The parameter nbtKey is being renamed to nbtPath.
• custom_name will now always convert all names into valid identifiers. The case sensitivity option was removed.
• The module stored_enchantments (plural) is being renamed to stored_enchantment (singular).

• custom_data module now has a caseSensitive option.

Changes to the Java API (non-breaking):

• Parameterized modules no longer need to register a constructor. They may be built directly from their codec instead.
• Special modules no longer need to register a constructor. They may be registered the same way as Simple modules.
• Special modules are no longer required to implement their variant logic separately from the special logic.
• The old ways of registering special and parameterized modules has been marked as deprecated.

• Added the custom_name CIT module
• Fixed the parameters block being mandatory on modules with only optional parameters.
• Fixed items with no variant using the fallback model instead of the vanilla one.

⚠️ This release contains breaking changes. ⚠️

• Overhauled the mod to serve as a multi-purpose CIT library. Renammed mod to "Variants-CIT".
• Removed the embedded resource pack. See the main page for a list of compatible packs.
• CIT logic is now modular, and can be extended by other mods.
• Added CIT modules for the Axolotl Bucket, Goat Horn, Music Discs, Potions, and items with custom_data.
• CIT modules must now be enabled and configured by resource packs, which require additional files.

• Added the ability for resource packs to define CITs based on enchantment levels.
  (However the embedded pack does not use this feature.)

• Fixed an incompatibility with ModernFix, that could prevent enchantments with no CIT from using the vanilla texture.

• Initial Release