[Feature] Support to install docker extension in windows virtual machine scale sets

[Prudhvi469]

Is your feature request related to a problem? Please describe.

I have a self hosted windows vmss with below source image for which docker is not installed by default.

source_image_reference {
publisher = "MicrosoftWindowsServer"
offer = "WindowsServer"
sku = "2022-Datacenter"
version = "latest"
}

In order to install docker, every time I need to login to instance that was created in vmss and install it manually. If the instance was destroyed then again, I need to do the same for new instance and so on..

Describe the solution you'd like

An extension for docker in vmss

Describe alternatives you've considered

I used the custom script extension to install it through commands but that is not working because after execution of scripts, a vm instance should restart.

Additional context
Add any other context or screenshots about the feature request here.

[microsoft-github-policy-service]

Action required from @aritraghosh, @julia-yin, @AllenWen-at-Azure