Elytra Contrails Mod

NOTE: Unless major bugs are found, this will likely be the last Elytra Contrails version for minecraft 1.21.11, as I move on to 26.1

-- ELYTRA CONTRAILS 1.4.3 --

MISC ADDITIONS AND CHANGES:

• Changed the config to use my own GSON serializer instead of cloth config, meaning that people can use the mod without cloth config, they just won't be able to edit the config in game (will require changing the file)
• Cleaned up light texture computation
• Extend player trail rendering to work on Mannequins
• Fix other "poses" causing trails to disappear (such as sprint swimming) by directly check for FallFlying instead of using pose