filter or exclude ns

[JuanSeBestia]

I have some ns that I do not want to be touched, because the pods take a long time to upload, so I want to filter them or exclude them

[cpressland]

@JuanSeBestia - I've opened a PR which covers half of this, it doesn't allow excluding as kubectl doesn't have a mechanism for saying "Give me everything except this thing", but I can limit namespace scope easy enough.

In a perfect world I'd actually replace the entire kubectl interface with a kube library, that'd be faster and allow us to make better decisions such as excluding specific things, but, thats a lot of work for very little gain.

Fingers crossed @storax merges and releases this, but failing that my build of this is available here cpressland/kubedoom