ETS2 - SGD Wielton DLC Trailer Patch V1.0

INFORMATION:
Modification 
Adds 18 trailer variants for: Freight Market, 
External Contracts and Traffic, 
Also add 3 tuning parts. 
Mod use Wielton Trailer DLC definitions, so it should work fine with "Convoy" or with "World of Trucks" Contracts.

Authors: SGDESIGN