ETS2 - Ownable Fliegl Flatbed Trailer

Standalone
Ownable
17 cargo
Advanced coupling
Cables simulation
Many tuning parts
Works on any maps
Tested on version 1.45.x

Changes:
-adapted for patch 1.45
-fixed all errors
-added missed definition for working in Trailer browser
-fixed missing textures
-fixed tobj files
-fixed collision
-fixed problem with advanced coupling
-added missing UI icons
-added optional support for Convoys
-removed unnecessary files
-no errors in log file

Authors: Virtual Service, adapted by TrafficManiac