reduce cpu, memory usage in CSI drivers on Windows

[andyzhangx]

Is your feature request related to a problem?/Why is this needed

powershell command would consume more memory and cpu on Windows, it's better replace with Golang API in Windows host process mode

1. Test-Path $Env:remotepath
   // PathValid determines whether all elements of a path exist
   // https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.management/test-path?view=powershell-7
   // for a remote path, determines whether connection is ok
   // e.g. in a SMB server connection, if password is changed, connection will be lost, this func will return false
   replace with os.Stat, related to fix: mount-utils: Detect potential stale file handle kubernetes/kubernetes#106906

2. (Get-Item -Path $Env:mount).Target
   replace with os.Readlink does not work: [WIP] fix: replace Get-Item powershell cmd with golang api azuredisk-csi-driver#2265

3. there are other powershell commands in following code, it's better replacing them all with Golang APIs (search RunPowershellCmd)
   https://github.com/kubernetes-sigs/azurefile-csi-driver/blob/master/pkg/os/smb/smb.go

Describe the solution you'd like in detail

Describe alternatives you've considered

Additional context

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