Chest Cavity

Changes: -Creeper Appendix gained tool tip to hint at proper usage -Chest Opener can no longer open other players Bugfixes: -Venom Gland crashed servers -Splash Water Bottles did not trigger Hydrophobia or Hydroallergenic Foundation: -ChestCavityManagers have been split into ChestCavityTypes, ChestCavityInstances, and ChestCavityUtil. This is in preparation to implement data-driven chest cavities.