[feat]: Surface deletionTimestamp as a printcolumn

[tchinmai7]

Description of your changes

Add the deletionTimestamp as a top-level column for each managed resource.

Fixes #513

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• Added backport release-x.y labels to auto-backport this PR if necessary.

How has this code been tested

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Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
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