MACK Super-Liner 6x4 Autoload v 1.2

Changelog V 1.2.0.0
- Tested with TestRunner_public (GIANTS). (Error free!)
- Loading area enlarged
- Loading area adapted for autoload
- Autoload trigger moved further forward because of trailer
- Payload changed 12 and 24 Euro pallets.
- Trailer hitch with connections moved further back. (Autoload now works with trailer).
- Side lights attached.
- Dependencies of "Pallet Autoloader Specialization" added