- introduction of the OTN layer
- presentation of the new services OTU4, ODU4, 1GE/ODU0 and 10GE/ODU2e
- new rpc for otn-service-path
- description of the otn-topology
- description of the interconnection with the GNPy tool to check path
feasilibty and perform impairment-aware path computation
Change-Id: I5869873f7fc426bee04c07b57d37cfcc5da727f2
Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>