Fabric Shield Lib 1.8.0 For 1.21.4

What's Changed

• Internal optimization
• getCooldownTicks has itemstack context now
• Model predicates must be made in .json per each shield in assets/modid/items
• Builtinitemrendererregistry is has been migrated to a data component
• When creating a banner shield, users add their SpriteIdentifiers and the entitymodelayer into the custom component

New Contributors

-Thanks to @Starexify on discord for providing a new necessary mixin!

Full Changelog: v1.7.2-1.21.1...v1.8.0-pre1-1.21.4