[ATS] VOLVO F10-F12 FOR 1.31.X

Converted Volvo F10/F12 (1977-1987) for ATS 1.31.x.x
The truck have:
- 2 cabins
- many chassis options
- realistic engines & transmissions
- 2 interiors (one for each cabin)
- skins
- metallic painting
- a few own accessories
- added compatibility with DLC Toys and DLC Flags;
- own sound.