Document editor integrations in-depth

[kingdonb]

I wanted to mention the capability of VSCode and perhaps other editors to take in your OpenAPI spec (whether that's done through simply installing the Kubernetes plugin, which connects to the cluster and pulls it from the CRD once it has been installed, or if there are other ways to provide the API to the editor so it can do context-aware suggestions and everything else you get...)

We don't appear to have anywhere in the docs that covers this information now. I will give it a mention in the E2E docs as I have done, and link back to this issue.