ETS2 - SGD Trailer Patch

INFORMATION:
- Fixed some trailer mapping
- Assigned "Sweet Valentine Event" skin to the : Tuned Event dryvan trailer
- Added 20 skin from : SiSL's Trailer Pack

Information:
- Mod use SCS standard definitions, so it should work fine with "Convoy" or "World of Trucks"

SGD TRAILERS:
- Tuned Event dryvan trailer

CHASSIS:
- Aero Dynamic reefer trailer ( ai traffic, quick job & wot )
- Crown dryvan trailer ( ai traffic, quick job & wot )
- Crown curtain trailer ( ai traffic, quick job & wot )
- Schmied curtain trailer ( ai traffic, quick job & wot )

Support for 1.48.5.x.x

Authors: sgdesign