1.5 for Spigot/PaperMC 1.20.1+

New in this version:

• Added config - You can now disable any particular item in the config file. All settings are named enableEnderChest, enableGrindstone, etc
  All are on by default except the new anvil support
  Suggested by bonggil

• Added Anvil support - You can now open anvils from your inventory
  Anvils do not take durability damage when opened this way like they do in the world, so this is an opt-in feature if you do not care about that. By default it is off, and can be enabled by setting enableAnvil to true in the new config file
  Suggested by Folas1337

• Added permission support - You can now control who can open what using a permissions system
  All permissions are named ultimateinventory.enderchest, ultimateinventory.grindstone, etc
  To enable permission checks, set usePermissions to true in the new config file. If you don't do this, there are no permission restrictions, so server owners who don't use a permissions plugin don't need to set anything extra up
  Suggested by Blzd

Please enjoy

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As always, although I take every care to ensure there are no duplication bugs in this plugin, some may remain

This plugin should still work as expected with future versions of minecraft.