ATS - Great Dane Trailer Single-Double

Description:
-Fully standalone.
-30 cargos.
-30 skins.
-Fixed trailer list name.
-Fixed trailer visor name.
-Ownable.
-Single/Double
-Two game modes: Owned trailer and freight market.
-Added to traffic (doubles too).
-Clean gamelog.

Adapted to 1.46.x ATS game version.

Authors: CyrusTheVirus, Invasor, MiguelAngel988, Crisan21, Siebel3D, MuhaBZzz, Joster91, Smangamaker, Agustin STC