Manage ODU4 services over multiple OTU4

- in pce module, remove the exclusive "AZ" mode to allow also the
"intermediate" mode
- in network module, modify signature of createOtnLinks, updateOtnLinks
and deleteOtnLinks mehtods to take into acount a list of supporting
links
- in renderer module, rationalize the OpenRoadmInterface creation,
taking into account data coming from portmapping
(supporting-interfaces), setting the sapi/dapi info comming from the
specific input container, updating the mapping once the interface has
been created...
- adapt UT and functional tests consequently (notably, disable test 82
in B100_end2end test suite - resolved in the change 97834)

JIRA: TRNSPRTPCE-541
Signed-off-by: Gilles Thouenon <gilles.thouenon@orange.com>
Change-Id: I3e6b89ee22aa5c653e6740d6efffb00038910f26