Added cloud shell functional tests

Update powershell script to install kubectl ver 1.20 on jenkins.

docs: fix the error link in enhancements/README.md

site: windows instructions, reload powershell after install

Fix: path [commands/completion.md]

kvm2 driver: add dedicated network & static ip

bump storage provisioner image

Replace glog with klog

retry kapi.ScaleDeployment on failure

lint master

Add auto-pause webhook to inject env into pods for redirecting in-cluster kubectl request to reverse proxy of api server.

Fix to minikube cp functional test work on windows os

Bump golang.org/x/text from 0.3.4 to 0.3.5

docs: spelling

Addon: bump metrics-server to v0.4.2

add minikube image rm command

Bumps [golang.org/x/text](https://github.com/golang/text) from 0.3.4 to 0.3.5.
- [Release notes](https://github.com/golang/text/releases)
- [Commits](https://github.com/golang/text/compare/v0.3.4...v0.3.5)
Signed-off-by: Ndependabot[bot] <support@github.com>

Signed-off-by: NTharun <rajendrantharun@live.com>

Signed-off-by: NTharun <rajendrantharun@live.com>

add additional options to avoid node drain or delete getting stuck