Feature/stand alone helm (#129)

* Added validations from helm

* updated helper

* updated csi-install script

* updated kubectl version command

* updated kubectl command in verification

* fixed k8s version validator

* Fixed review comment

* fixed lint issue

* updated k8s version verification

* Fixed review comment

helm/csi-powerstore/Chart.yaml

@@ -2,7 +2,7 @@ name: csi-powerstore
 apiVersion: v2
 version: 2.3.0
 appVersion: "2.3.0"
-kubeVersion: ">= 1.21.0 <= 1.24.0"
+kubeVersion: ">= 1.21.0 < 1.25.0"
 description: |
   PowerStore CSI (Container Storage Interface) driver Kubernetes
   integration. This chart includes everything required to provision via CSI as