Complete Petting Overhaul!

The mod is now wholly data driven. Particle offsets are now decalred via .json files provided by resource packs.

Animations for all!!

Every passive pettable mob now includes an animation by default! And, even better, the animations are ALSO data driven, allowing users to add custom animations through resource packs to either override the default ones, or add new ones for modded entities.

Keep in mind: these are not CEM/Optifine animations! They are based on the Blockbench JSON animation format. This makes it compatible with GeckoLib animations. Bones of the entities need to be named exactly as they are defined in-game, otherwise they won't be played. (e.g. "left_leg" not "leg_left")

This is a massive rework, so I expect there to be bugginess, so for now it remains in beta