ATS - Heil Superflo Pneumatic Trailer Ownable

Standalone
Ownable
Advanced coupling
Cables simulation
Some tuning
3 cargo
Works on any maps
Tested on version 1.45.x

Changes:
-added missed definition for working in Trailer browser
-added advanced coupling
-added missing UI icon for Trailer browser
-added optional support for Convoys
-fixed mudflaps (wrong logo direction)
-reduced 3d model polycount (optimization)

Authors: Obeja, Ido Zoni, invasor, KeithD, edited by TrafficManiac