Origin to/from Kube conversions for SAR

[enj]

For example, origin SAR scopes can be translated to kube SAR extras.

Full round trip conversion may not be possible.

I (Mo) do not think they are fully convertible. Our SAR stuff defaults the namespace and user to the current if not given, kube requires it. Kube SAR also has NonResourceAttributes and Subresource which we do not seem to have. I am also not sure if kube's Extra and our Scopes can be round tripped without losing data.

I planned on simply removing it but I was not sure if the origin SAR stuff even handled NonResourceAttributes. While both ResourceAttributes and NonResourceAttributes cannot be specified together, the origin stuff does have a .Path so I feel like that should be used at some point.

xref: #13128

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