New truck trailers

Features:

• The model has two versions: One green (same as in beta) and another full version, in a paintable body.
• New handling.cfg and carcols.dat

Now we can say that the Roadtrain trailer is back in the game! AND IT'S FINISHED!

ENJOY THE MOD AND HAVE A GREAT TIME!
Specify the author if you want to distribute the modification/modifications.