Standard trailers in traffic

This modification adds a standard SCS trailer to the traffic.

- On-board semi-trailers

- Semi-trailers - container houses

- Sleepers

- Freight conveyors

- Dump trailers

- Long tanks

- Cement tanks

- Mobile barriers

- New Kenworth T680 and Western Star 49X trucks

- RM Double floor, flat, cabin, insulated, refrigerated

- Triple coated, flat, cabin, insulated, refrigerated

- Separate tractor without semi-trailer

Game version: 1.41.x