Move apimachinery/pkg/util/diff to utils

[rajathagasthya]

We use that package in unit tests for some of our operators to generate diffs between actual and expected CR objects. If you think it's a good idea to add it to this repo, I'm happy to help!

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
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/lifecycle stale

[thockin]

No objections, but note that the bar is higher in this rpo for code quality, API, and testing. You might get the opportunity to fix APis on the way in.

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On Mon, Apr 29, 2019 at 4:51 PM fejta-bot ***@***.***> wrote: Issues go stale after 90d of inactivity. Mark the issue as fresh with /remove-lifecycle stale. Stale issues rot after an additional 30d of inactivity and eventually close. If this issue is safe to close now please do so with /close. Send feedback to sig-testing, kubernetes/test-infra and/or fejta <https://github.com/fejta>. /lifecycle stale — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#75 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABKWAVFO4SE4FBAR27G4VG3PS6CWTANCNFSM4GS2ONPQ> .

[rajathagasthya]

This is actually already implemented in #82. So I'll close this. Thanks.