This adds the Mega Punch & Mega Kick guys from FireRed and LeafGreen.
Given Mega Punch was in Mt. Moon, and GF replaced it with Thief in FRLG, I decided to change the TM to the Wing Fossil, which currently isn't obtainable outside of Mt. Moon Crater.
* Update sign to bg_event #289
* Rename warp to warp_event
* Replace object to object_event
* Move warp macro parameter from warp x, y, id, map to warp_event x, y, map, id