Manage 100GE service terminated on a 100G OTN Switch 2.2.1

Since the first version of Transportpce, it is possible to manage a 100GE service terminated on a 100G Transponder.
A recent version of Transportpce allows also management of 100GE service when terminated on a 400G Muxponder equiped with 100GE client interfaces.
The use case of a 100GE service terminated on a 100G OTN switch has not been managed yet by Transportpce. In such a case, it must be possible to create/delete 100GE service on the network where the infrastructure is already configured (it means, at least one OTU4 link inside the otn-topology). The case using a third otn-switch as an electrical regenerator must also be managed (in such a case, at least 2 distincts OTU4 links inside the otn-topology).

Acceptance criteria : Code does not bring regression and is submited for review. The associated functionnal test is provided to complement otn-end2end test suite.