* Tests: assign the World to WorldTestBase and add a player field (because I like typing self.player far more than random 1's all over the place)
* more accurate docstring for world and multiworld
* use self.player within the class
More speed optimizations for The Messenger. Moves Figurines into their own region, so their complicated access rule only needs to be calculated once when doing a sweep. Removes a redundant loop for shop locations by just directly assigning the access rule in the class instead of retroactively. Reduces slot_data to only information that can't be derived, and removes some additional extraneous data. Removes some unused sets and lists. Removes a redundant event location, and increments the required_client_version to prevent clients that don't expect the new slot_data. Drops data version since it's going away soon anyways, to remove conflicts.
Aaron Wagener