OCM: support bearer token access and other refactoring #2920

Job	Run time
integration	1m 41s
go	31s
docker (docker/Dockerfile.revad) / docker	1m 25s
docker (docker/Dockerfile.revad-eos) / docker	43s
docker (docker/Dockerfile.revad-eos) / docker	40s
docker (docker/Dockerfile.revad-ceph) / docker	1m 44s
docker (docker/Dockerfile.reva) / docker	41s
acceptance-1 / compose	1m 40s
acceptance-2 (3) / compose	5m 5s
acceptance-2 (4) / compose	6m 18s
acceptance-2 (2) / compose	12m 26s
acceptance-2 (1) / compose	5m 22s
acceptance-2 (5) / compose	5m 9s
litmus (litmus-1) / compose	1m 39s
acceptance-2 (6) / compose	7m 32s
litmus (litmus-2) / compose	1m 39s
	54m 15s

Provide feedback