Add PersistentVolumeClaim support to kubectl plugin

Just add aliases for PVC actions.

plugins/kubectl/kubectl.plugin.zsh

@@ -112,3 +112,11 @@ alias kgno='kubectl get nodes'
 alias keno='kubectl edit node'
 alias kdno='kubectl describe node'
 alias kdelno='kubectl delete node'
+
+# PVC management.
+alias kgpvc='kubectl get pvc'
+alias kgpvcw='kgpvc --watch'
+alias kepvc='kubectl edit pvc'
+alias kdpvc='kubectl describe pvc'
+alias kdelpvc='kubectl delete pvc'
+