Firmament for Hypixel SkyBlock

Full Changelog: https://github.com/nea89o/Firmament/compare/2.6.0+mc1.21.5...2.7.0+mc1.21.5

• feat: Add more complex entity equipment scraper (stealthisfit). Mainly for texture pack devs
• feat: Add Pet overlay ~kathund
• fix: Cosmeticized Backpacks not being recognized by storage overlay
• feat(dev): Add copy inventory title button
• refactor: Implement REI recipe layouter and port recipes
  • this is an internal change, but it could mean potentially more different item list backends in the future!
• feat: Add option to stop scrolling over items in storage overlay
• feat(debug): Add /firm dev screens command
• feat: Add option disable slot highlights in /sbmenu