Freightliner Classic XL

Freightliner Classic XL truck angepasst for American Truck Simulator by H.Trucker.

Changelog in this version:

- Update engines to American Truck Simulator
- Removed roof addons
- Removed grill addons
- Removed DLC toys addons
- Added some missing sounds

* Known error:

- Default temporary buffer is insufficient while reading '/vehicle/truck/freightliner.classic/truck.pmg' with size 26331456