Peterbilt 389 for 1.19 patch 1.0

Adaptation of the american truck Peterbilt 389 to 1.19.x version of Euro Truck Simulator 2.

This first version contains:
● adapted to the 1.119 version
● chassis options: 8x4 Old School Style, 4x4, 8x4 & 4x4 Old School Style
● made the cabin steps as accessory and paintable
● made the exhaust as accessory
● added 3 new exhaust types from optimus prime mod
● added 2 new engine types : Cat 3406, Cummins Signature
● updated engine sounds to newest version from kriechbaum
● added wipers interval mode
● added accessory interior light, 4 colors
● HD textures
● some fixes at the truck model