Changelog
* Fix typo in URL for WRENCH resource pack and DRY it _During module registration, the URL had a trailing 0_
* Add general PersistentDataType which uses GSON for arbitrary object serialization
* Add PersistentHeads module, allowing for keeping name/lore after placing and breaking them
* Fixed issue w/Tag module. Tag now follows the player around if their inventory is full
* Added config option for Tag/module to play a sound at the player to "encourage" them to pick up the tag.