use Roadpricing scheme also in VRP solving

[kt86]

... some preparations are done in #280

Until now the VRPs are solved without taking any roadpring into account. This must be changed.

[kt86]

matsim-org/matsim-libs#3390 solves some issues and brings it towards the official MATSim approach.

-> It should now be easily to add the road pricing, as one can also see in the tests there.
Another advantage is, that we now can toll based on the vehicleType's properties, as they are available in MATSim :)