CORD-2964 Tosca changes for OpenStack Modeling Changes;
Enable Pull Steps and Models directories;
Add OpenStack synchronizer to filter-images

Change-Id: I324afbcf542ba907decb9b0907dc18354be61249
diff --git a/examples/image-tag-candidate.yaml b/examples/image-tag-candidate.yaml
index 6c6480e..321359e 100644
--- a/examples/image-tag-candidate.yaml
+++ b/examples/image-tag-candidate.yaml
@@ -45,5 +45,8 @@
   rcord_synchronizerImage: 'xosproject/rcord-synchronizer:candidate'
 simpleexampleservice:
   simpleexampleservice_synchronizerImage: 'xosproject/simpleexampleservice-synchronizer:candidate'
+hippieOSS:
+  hippieOSS_synchronizerImage: 'xosproject/hippie-oss-synchronizer:candidate'
+openstack:
+  openstack_synchronizerImage: 'xosproject/openstack-synchronizer:candidate'
 
-hippieOSS_synchronizerImage: 'xosproject/hippie-oss-synchronizer:candidate'