Volvo F10/F12 edit by mjtemdark for v1.27

The truck has:
> 2 cabins
> many chassis options
> realistic engines & transmissions
> 2 interiors (one for each cabin)
> skins
> metallic painting
> a few accessories
> own sound.
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NEW upgrades by mjtemdark:
> Interior re-decorated (changed colors of the buttons), added new animations (differential, lift axle), calibrated indicators (re-animated);
> Separated front and side curtains (now both can be removed);
> Separated spare tire, relocated according to chassis (also can be removed);
> New collisions, fixed rear collision with incorrect rotation;
> Added compatibility with the “advanced trailer coupling”;
> Added 6×2 lift short chassis;
> Added paint and chrome mirrors, now you can do skins for the spoiler too;
> Added alternate UV (reduced template for skins);
> Updated defs & models.