ItemBound: ReBound

• Moved entire pack to no longer with without some method of applying Model Definitions to an item in-game (I recommend ModelApplier by Ewan Howell)
• A couple texture tweaks I think? (I've been working on this for a while and was bad at documenting)
• Re-added the following items: elytra_bed, elytra_broom, elytra_cobweb, elytra_cardboard, elytra_glass, elytra_hecteye, elytra_hand, helmet_giftheadgreen, helmet_giftheadred, helmet_giftheadwhite, bow_viper, amethyst_flail, amethyst_whip, garnet_gauntlet, garnet_knuckle, scythe_dark, scythe_light, painting_arcadia, painting_mona, painting_scream, painting_starry, painting_sunset, poster_steveu, shield_hylian, shield_rose

TLDR: I have switched how the pack fundamentally functions. From this version onward, I will not be updating/supporting the previous method. Unfortunately this new one DOES rely on a Data Pack or Mod to function, but the previous method was extremely painful to maintain/update, didn't support ARMOR or ELYTRA without a mod, and was incompatible with any other pack using the same method. This new method is far easier to maintain, DOES support ARMOR & ELYTRA, and will not interfere with any other Resource Pack in your Minecraft client.