Add PodSet Slice API

[lchrzaszcz]

What type of PR is this?

/kind feature

What this PR does / why we need it:

This PR adds required PodSet Slice API and fields needed by two-level TAS scheduling.

Which issue(s) this PR fixes:

Relates to #5439

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

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[k8s-ci-robot]

Hi @lchrzaszcz. 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.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[k8s-ci-robot]

@lchrzaszcz: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/ok-to-test

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[mimowo]

/ok-to-test

[mimowo]

/lgtm
/approve
This is as in the KEP. I believe it will make reviewing the actual implementation easier.

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 0c30eb376b81c7eb830988db3037f96e45f93103

[tenzen-y]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lchrzaszcz, mimowo, tenzen-y

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [mimowo,tenzen-y]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[tenzen-y]

/release-note-edit

NONE

This has not been released yet.