ATS - Benson End-Dump Trailer V1.1 (1.39.x)

Version 1.1 Changelog:
Added more companies for receiving and sending cargo: it was 4, it became 15

Arranged the origins & destinations in accordance with everyone's suggestions.
The resulting job list was a bit short, so aside from coal cargo, there's now gravel & limestone too.
Some issues i couldn't solve.
Only for purchased trailer.
The trailer itself, comes in 3 sizes, and a paintable chassis.

Tested Version: 1.39

Authors: overfloater