Add owners files

[dimityrmirchev]

What this PR does / why we need it:

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Release note:

[8R0WNI3]

/lgtm, let's take this ownership for the last few weeks at least :^)

[gardener-prow]

@8R0WNI3: adding LGTM is restricted to approvers and reviewers in OWNERS files.

Details

In response to this:

/lgtm, let's take this ownership for the last few weeks at least :^)

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[gardener-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: 8R0WNI3

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

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Needs approval from an approver in each of these files:

• OWNERS

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