Introduce Disk Topology Feature

[julianKatz]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test

/kind feature

/kind flake

What this PR does / why we need it:

This PR introduces a new, flag-gated feature: Disk Topology.

GKE will be adding new labels to its nodes that indicate the GCP disk products that each node is compatible with.

With the addition of these new disk type labels to nodes, we can include disk type labels in workload scheduling. To affect that, those labels will be included in a PersistentVolume's NodeAffinity clause. This PR includes a disk support label consistent with the type specified in the StorageClass in each of the Topology segments included in CreateVolumeResponse. External Provisioner will then read these and add them as NodeAffinity requirements on the PV.

The feature is gated on the newly introduced --disk-topology=[true|false] flag, which is disabled by default.

Special notes for your reviewer: None.

Does this PR introduce a user-facing change?:

Yes, users can set the flag to true and enable the new functionality.

Added disk topology feature, enabled using --disk-topology=true (default off).  Disk topology includes support for `topology.gke.io/[disk-type]: true` labels on nodes and adds a label in that format to each CreateVolumeRequest.Volume.AccessibleTopology segment, which equate to NodeAffinity blocks in the eventual Persistent Volume.

[k8s-ci-robot]

Hi @julianKatz. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[hungnguyen243]

/ok-to-test

[k8s-ci-robot]

@julianKatz: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-gcp-compute-persistent-disk-csi-driver-e2e-windows-2022	3d848cf	link	false	/test pull-gcp-compute-persistent-disk-csi-driver-e2e-windows-2022

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[mattcary]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: julianKatz, mattcary, tonyzhc

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