Firmament for Hypixel SkyBlock

Full Changelog: https://github.com/nea89o/Firmament/compare/2.0.0+mc1.21.3...2.0.1+mc1.21.4

• feat: Port to 1.21.4
• feat: Add forward port for asset entries for SkyBlock items
  • This allows some older Firmament texture packs to run on 1.21.4. Not all texture pack features are yet supported, and once they are, they are likely going to use a new format.
• fix: Dungeon swords not being recognized for reforge recipes