New

• Add gamerule to toggle villagers spawning cats
• Add gamerule to toggle villagers spawning golems
• Add gamerule for editing the player's flying speed
• Add gamerules for toggling each biome
• Add gamerule for editing the number of waves in a raid
• Add gamerules for toggling different sources of xp
• Add gamerules for editing item durability
• Add gamerule to toggle whether netherite burns

Fixes

• Convert block information and food saturation gamerules to doubles
• Fix issue with command gamerules
• Add some code for misc. gamerules that I forgot to add
• FIx some default gamerule values
• Fix most item usage gamerules not working
• Improve mod compatibility

For devs

• Move all gamerules into a single enum
• Combine many mixins to shorten code
• Generally clean up code and make intellij happy