Exclude Project By Audit Scope

This patch adds project_id in compute CDM, It also adds logic for
excluding project_id in audit scope.

Change-Id: Ife228e3d1855b65abee637516470e463ba8a2815
Implements: blueprint audit-scope-exclude-project

watcher/decision_engine/model/notification/nova.py

@@ -76,6 +76,7 @@ class NovaNotification(base.NotificationEndpoint):
             'disk': disk_gb,
             'disk_capacity': disk_gb,
             'metadata': instance_metadata,
+            'tenant_id': instance_data['tenant_id']
         })
 
         try: