New Holland T8 v1.0.0.0

Hello everybody,
I have (thanks to the energetic support of Alex Blue) modified the NH T8 a bit.

It now has the following properties:
– Price set down easily
– Rim color choice
– Body equipped with color choice
– Trelleborg Terra tires selectable

Otherwise, the tractor is as far as standard. The LOG is clean, but errors should still be reported.