Add kubectl health plugin

[iNecas]

Project link: https://github.com/inecas/kube-health

Description
kube-health is a kubectl plugin to evaluate the health of Kubernetes resources. It aims at unifying and making it easier to understand the health of individual objects without requiring to know all the nuances of different kinds.

Features available:

• unified reporting on health and progressing of kubernetes objects
• decomposing the health of high-level objets to lower-level components
• waiting for reconciliation
• ability to combine with kubectl apply and other commands

[ahmetb]

🤖 Beep beep! I’m a robot speaking on behalf of @ahmetb. 🤖

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Thanks for submitting your kubectl plugin to Krew!
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Thanks for your patience!
/kind new-plugin

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: iNecas / name: Ivan Necas (f8cf281, 907eb7e)

[k8s-ci-robot]

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This pull-request has been approved by: iNecas
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[k8s-ci-robot]

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[ahmetb]

Thanks for the submission. Looks like high quality work.

[ahmetb]

Try to shorten as much as you can. We truncate at 55 chars while displaying this. Phrases like "An easy way to" are often redundant.

[iNecas]

Updated

[iNecas]

Anything else that I can do to get the PR merged?