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/imagePullPolicy-IfNotPresent.yaml b/examples/imagePullPolicy-IfNotPresent.yaml
index b0dee7f..62a3c41 100644
--- a/examples/imagePullPolicy-IfNotPresent.yaml
+++ b/examples/imagePullPolicy-IfNotPresent.yaml
@@ -39,3 +39,5 @@
   imagePullPolicy: 'IfNotPresent'
 simpleexampleservice:
   imagePullPolicy: 'IfNotPresent'
+openstack:
+  imagePullPolicy: 'IfNotPresent'
\ No newline at end of file