Freight: Introduce something like a "CarrierJob" on MATSim-level

[kt86]

As a first step, this could be an interface which then has the CarrierShipment and the CarrierService under its hat. (Done in #3599)

Moved out to #3600:
And get rid of some duplicated infrastructure to handle "Services" and "Shipments" on the MATSim side.

Moved out to #3601:
Later it is maybe more generalized and can have 1 or to 2 locations with all the settings (TimeWindow, handlingDuration).
Depending on the number of locations, the jsprit algorithm is chosen: If it is a 1-location job, jsprit uses "Services", if it has 2 locations, it uses "Shipments".

This is a possible issue for an advanced student as semester task during the advanced MATSim class at TUB.

[kt86]

Issue is splitted up in different issues. -> closing this