ETS2 - Off-Road Chassis for Standard Trailers SCS

Adds off-road chassis for standard SCS trailers to the game

Last changes:
Numerous bugs and errors in the previous version have been fixed.
Off-road chassis are completely autonomous and do not replace anything.
Off-road trailers have now been added to the Standard Trailer Dealer (SCS BOX).
Added 6 off-road tire versions and 3 off-road trailer rim versions.
Added dirty versions of tires and rims for off-road trailers.
Off-road trailers are fully optimized and will work smoothly on the new version of ETS2 and higher.
The log is 100% clean!

ATTENTION:
Off-road chassis is designed to be coupled only with off-road trucks!
Test on ETS2 version: 1.45.x.
On version 1.46 it will work quietly.

Authors: Kish88. Collaboration: AJIEHA. Adapted from: Master_Yoda.