3.0.2+1.12.5-fabric

Some fixes.

• correct the outlined enchantment animation
• correct the behaviors of some methods

Notice that this is still bare-bones.

3.0.1+1.21.5-fabric

This is a version ported to 1.21.5. However, it's only "barely usable" (I haven't even done much testing). I've ported some of the rendering code and armor value calculation code, but I haven't completely refactored the system. In some methods that are no longer compatible with the new version, I've directly hardcoded some solutions that don't handle all situations - please be aware of this limitation.