Added scripts for adding and removing static PVs using nfs-csi

Altered values-override to use nfs-csi for static PVs

pv-apim-events.yaml

@@ -0,0 +1,13 @@
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  name: apim-events
+spec:
+  capacity:
+    storage: 1Gi
+  nfs:
+    server: 192.168.0.105
+    path: /nfs/NFS/ocp/apim-events
+  storageClassName: nfs-csi
+  accessModes:
+    - ReadWriteMany