Core/Extractors: Fixed a possible issue with M2 model scaling
Scripts/The Storm Peaks: Use proper vehicle check on prisoners from C…

…old Hearted quest.
-TrinityCore
Core/Vehicles: Implemented vehicle seat flag that makes passengers un…

…selectable and dropped redundant UNIT_STATE_ONVEHICLE (it is only
checked in the same places as unselectable unit flag)
-trinityCore
Core/Vehicles: removing old code for later remake