Retrieve secrets using Secret Management Service

Retrieve secrets using Secret Management Service

Integrate with HAS by retrieving stored secrets using SMS
Application code remains in tact as the secrets are preloaded
and stored in config. During startup the conf will be set with
retrieved secrets. The configs in clear text will be deprecated
eventually. OOM needs to load aaf-sms and preload secrets
before oof deployment.

Updated to use domain name instead of domain uuid.

Change-Id: I902b18c0cf080316f9a251e61387b67756198cc2
Issue-ID: OPTFRA-343
Signed-off-by: Dileep Ranganathan <dileep.ranganathan@intel.com>