Initial patch to add barbican rbac tests

This adds initial RBAC tests for secrets

Change-Id: Ib79eed6886839d1b7848c991bd64e82595c6c32e
diff --git a/barbican_tempest_plugin/plugin.py b/barbican_tempest_plugin/plugin.py
index 1914ecb..2acd7cc 100644
--- a/barbican_tempest_plugin/plugin.py
+++ b/barbican_tempest_plugin/plugin.py
@@ -39,6 +39,12 @@
                            project_config.ephemeral_storage_encryption_group)
         conf.register_opts(project_config.ImageSignatureVerificationGroup,
                            project_config.image_signature_verification_group)
+        conf.register_group(
+            project_config.barbican_rbac_scope_verification_group)
+        conf.register_opts(
+            project_config.BarbicanRBACScopeVerificationGroup,
+            project_config.barbican_rbac_scope_verification_group
+        )
 
     def get_opt_lists(self):
         return [('service_available', [project_config.service_option])]