Add vehicle version generator

[trinaldi]

Summary

I opened PR #2539 thinking we didn't have this kind of generator. However, I've noticed that we currently don't have a Vehicle.version generator, so I decided to make my contribution.

From AutoTrader

What is a version of a car?
A variant is the label that is used to describe a particular vehicle. Rather than just having the make and model, it includes more specific data such as engine size, number of doors and the version. E.g. Ford Fiesta (1.25 Zetec Hatchback 5dr)

In this case 1.25 Zetec Hatchback 5dr is the version.

Other Information

Use example in addition to other generators:

Faker::Vehicle.manufacture
"Subaru"

Faker::Vehicle.model
"Navigator"

Faker::Vehicle.version
"Limited T270 1.3 TB"

[Zeragamba]

Would have prefered if it was just the new section, but this does help

[Zeragamba]

I was looking at that and thought it was odd too :P