GitLab

If a role certificate is added a second time to the roles
resource, do not add it again.

Change-Id: Ifce27b93404216fb2bbac5b02aeb414a75f0398c
Signed-off-by: Greg Zaverucha <gregz@microsoft.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/18831Reviewed-by: Kevin Kane <kkane@microsoft.com>
Tested-by: jenkins-iotivity <jenkins@iotivity.org>