Accessories

General update to 1.21.2 with some changes around gameplay and API.

Features:

• Add support for elytra being equipped within cape or back slot which must be toggled on within Accessories Config
• Add support for totem being equipped within the charm slot which must be toggled on within Accessories Config
• Add support for putting the banner within the hat slot to wear such like illagers

Fixes:

• Properly track stack mutations for Accessory Nests

API:

• Refactors to remove central class to break up core API into specific sections
• Move Holder class to private API
• Publish Neo specific files like AT and interface injection file
• Adjust API enchantment redirection tag to being a blacklist instead of a whitelist