Added trigger reference to WaypointData, unused

WaypointData also inherits from Entity now, so I could alias Entity's API
for it too. I've also made a number of comment tweaks.

server/server_character_methods.cpp

@@ -191,7 +191,6 @@ void ServerApplication::HandleCharacterSetRoom(CharacterPacket* const argPacket)
 	}
 
 	//set the character's room, zero it's origin, zero it's motion
-	//TODO: Set the origin here
 	characterData->SetRoomIndex(argPacket->roomIndex);
 	characterData->SetOrigin({0, 0});
 	characterData->SetMotion({0, 0});