TransmissionUnitBandwidth: Change from MBytes/s to MBit/s
The annotation currently uses the unusual unit MBytes/s, although the client code assumes that the unit is MBit/s.
In the course of the code review, the GUI labels have already been adjusted.
In this ticket, the corresponding field of the
TransmissionUnitBandwidth annotation shall be renamed, a model
migrator shall be implemented.
(from redmine: issue id 3138, created on 2017-11-07, closed on 2018-02-02)