Added filesafe player name function and updated generator functions in all worlds to use filesafe player name during output

Thanks Windows for your bad filesystem.

BaseClasses.py

@@ -269,6 +269,9 @@ class MultiWorld():
     def get_player_name(self, player: int) -> str:
         return self.player_name[player]
 
+    def get_file_safe_player_name(self, player: int) -> str:
+        return ''.join(c for c in self.get_player_name(player) if c not in '<>:"/\\|?*')
+
     def initialize_regions(self, regions=None):
         for region in regions if regions else self.regions:
             region.world = self