Add snapshot yaml files and volume clone

capabilities to provisioner.

Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>

examples/rbd/pod-restore.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: csirbd-restore-demo-pod
+spec:
+  containers:
+   - name: web-server
+     image: nginx 
+     volumeMounts:
+       - name: mypvc
+         mountPath: /var/lib/www/html
+  volumes:
+   - name: mypvc
+     persistentVolumeClaim:
+       claimName: rbd-pvc-restore
+       readOnly: false
+