ButterBee - Mob Variants

ButterBee 1.0.4

• Updated to support 1.21.11
• ButterBee now only optionally depends on CliffTree, and no longer prevents world creation when CliffTree isn't present
  • By default, some variants will only spawn in CliffTree biomes. Other biomes can be included by adding them to the variant's specified biome tag
• Removed the no resource pack warning message, as it caused several issues