kubectl explain --recursive --depth 5

[novellizator]

What would you like to be added:
Setting the maximum depth of the recursion could be helpful at times.

Why is this needed:
when you kubectl explain complex objects such as pods, it goes way to much in detail, so having a shorter desc would be helpful.

[k8s-ci-robot]

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[ak20102763]

@novellizator I think this --depth <int> flag would be a good addition, along with --recursive and it will give better UX. User may want to see the first few levels of details to begin with and not the entire description of complex resources. I got the implementation for plaintext type of output, would like to take this up once it is triaged.