Beta Trailerpack 0.4.0

Just updated the bunch. Wheels, textures, I'm not sure what else as I was working slowly on it for months

It was done a bit quick and dirty, but all seems to work fine. If you encounter issues please be constructive.

The Jbeams still seem to have the quality like I've made them when I started modding. Oh well, most are now patched and functional.

• added a pickup config with gooseneck ("D35 V8 4WD Extended Cab Gooseneck (A)")
• strengtened the gooseneck jbeams
• added a gooseneck for the stepside and the 'short' bed (D10 etc)
• moved the gooseneck jbeam and flexbody from the common to the pickup folder
• moved the gooseneck hitch of the...

- Fixed the D-series gooseneck, added a long bed option
- Tweaked the caravan's Off-Road suspension, updated the caravan jbeam
- Strengthened the gooseneck flatbed a bit

- Made them vehicles on their own
- Added some more stuff
- Improved/updated some a bit