Updated the KEP with a Test Plan section

[arjunrn]

A Test Section to track this change for the 1.18 release.

[k8s-ci-robot]

Hi @arjunrn. Thanks for your PR.

I'm waiting for a kubernetes 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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[josephburnett]

You could say here the feature does include these unit tests. And provide a permalink to the tests.

[josephburnett]

/lgtm
/approve

[arjunrn]

/assign mwielgus

[mwielgus]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: arjunrn, josephburnett, mwielgus

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