Persistent Storage

Extremely simple mod allowing the storage of variables between worlds.
Currently only client side, but could support server in the future.

Adding Data:

• PersistentStorage.put(String key, Object value)
• PersistentStorage.putTag(String tag)

Accessing Data:

• PersistentStorage.get(String key) (Returns JSONElement)
• PersistentStorage.getTag(String tag) (Returns true if tag has been set)
• PersistentStorage.getBoolean(String key) (Returns true if the specified key