Maps of the Unknown

Added dynamic structure locating!

• Prevent world freeze while searching for a structure
• Requires the player to keep the map in hand until locating finished
• Can be toggle with the doBetterMapsDynamicLocating gamerule (default to true)

Other changes:

• loot table can now set a specific dimension for the map to be used in. Can be useful for modpack creators to make maps to specific structures harder to acquire.

Initial version for Mc 1.20.1

Initial version for Mc 1.19