[0662] Added waypoint movement to creature 12264 in Molten Core

* Added movement waypoint to creature 12264 (Shazzrah) in Molten Core
* Improved movement waypoints of creature 12056 (Baron Geddon) in Molten
Core and moved it to creature_movement_template
Source: http://www.youtube.com/watch?v=PyTZ1VZR3kY