Windows Server 20H2 and 2004 support, configurable base layer versions.

[jeremyje]

What type of PR is this?

/kind feature

What this PR does / why we need it:
Newer versions of Kubernetes will support Windows Server 2004 and 20H2.
This PR also adds the support to pick a specific tag within a release band so that builds across CI runs can be consistent.
Lastly, this PR also changes the tagging for the OS specific images in the multi-arch build. There's a small chance this can cause some disruption but it's low. This change was necessary because of the 20H2 version suffix. The capital H is rejected in the image name but ok for tag. This change does reduce the image repository count so there's a benefit to moving the OS suffix from the image name to the tag.

Which issue(s) this PR fixes:

Fixes #690

Special notes for your reviewer:

This change needs to go in relatively soon because Windows Server 1909 will be EOL in a few months and we'll need some lead time to release this.

Does this PR introduce a user-facing change?:

Added Support for Windows Server 2004 and 20H2.

[jeremyje]

/priority important-soon

[jeremyje]

I tested this change with make GCE_PD_CSI_STAGING_IMAGE=gcr.io/jeremyje/gcp-pd-csi-driver build-and-push-multi-arch here are the results.

Manifest:

{
   "schemaVersion": 2,
   "mediaType": "application/vnd.docker.distribution.manifest.list.v2+json",
   "manifests": [
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 956,
         "digest": "sha256:28f9ff140efac8617e665149c71e270e1771f8b644003e49698d639bf6632087",
         "platform": {
            "architecture": "amd64",
            "os": "windows",
            "os.version": "10.0.18363.1256"
         }
      },
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 956,
         "digest": "sha256:7ffbc35721878eac9551dc25863e50a079b1aa91cb222c1384a8df83b796e401",
         "platform": {
            "architecture": "amd64",
            "os": "windows",
            "os.version": "10.0.19041.685"
         }
      },
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 956,
         "digest": "sha256:0d5c58db6e28261a0f484285268112b8d118e57c292be5e90b9c84bfe60ee69c",
         "platform": {
            "architecture": "amd64",
            "os": "windows",
            "os.version": "10.0.19042.685"
         }
      },
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 1162,
         "digest": "sha256:f1e227381e5b1fdc2ca3573e40b12c5887c38b5f035414b3827f7e85868f7706",
         "platform": {
            "architecture": "amd64",
            "os": "linux"
         }
      },
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 956,
         "digest": "sha256:ccd39798df5fefcbce467bdd14cbe4a1081d2fe1a44ffca88bca32f4c41d4f78",
         "platform": {
            "architecture": "amd64",
            "os": "windows",
            "os.version": "10.0.17763.1637"
         }
      }
   ]
}

[msau42]

/assign @jingxu97

[mattcary]

/approve
/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jeremyje, mattcary

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