Waypoints and Bossbars

 - Added custom waypoint colours for every mob in the game, in case they get spawned using custom spawners. Different mob variants use the same colour. Any feedback is appreciated.

 - Waypoint colours have been tweaked across the board.

- Pre-emptively fixed a bug that could cause ghost waypoints to spawn if Mojang were to ever add illagers that can change forms or disappear in some way other than dying.

- Changed the raider predicate files to be compatible with 26.2. This still works with versions before 26.2.

- Made it so that the waypoint_transmit_range of regular mobs is reset every tick rather than it being set to 0, to avoid defining the attribute in the mob’s data.

- Updated pack.mcmeta to include 26.2.