Original SCS Trailers in Traffic [1.41.x]

Addition of original SCS trailers to AI traffic. – Flatbed semi-trailers – Container semi-trailers – Lowboy semi-trailers – Car transporter – Tipper semi-trailer – Long tanks – Cement tank – Mobile barrier – New Kenworth T680 and Western Star 49X tractors – RM Double – curtain, flatbet, dryvan, insulated, reefer – Triple – curtain, flatbet, dryvan, insulated, reefer – Separate tractors without semi-trailers