Proposal: implement kubespy as kubectl plugin

[liftedkilt]

Looking at : https://kubernetes.io/docs/tasks/extend-kubectl/kubectl-plugins/, it appears that we could use https://github.com/kubernetes/cli-runtime to implement kubespy as a plugin, and get a lot of the heavy lifting done for us.

Syntax could look something like:

kubectl spy po nginx --status
kubectl spy svc nginx --trace

^ I'm just spitballing here. @hausdorff WDYT?

[hausdorff]

This is a good idea and something I've been considering since it started to take off. May or may not put some time into this in my free time over the next couple weeks...

[liftedkilt]

I've been poking at it a bit as time permits today... Struggling my way through a lack of docs and a ton of unfamiliar interfaces to implement 😀 - mostly just trying to get alias expansion working still so that we can use CRDs and all the shortnames.

[joelkperkins]

@hausdorff @liftedkilt Any updates here?

[corneliusweig]

Somewhat related to #65