Generic resource form editor

[bgrant0607]

This isn't urgent, but it seems possible to create a generic form editor driven from OpenAPI.

Here's an example: https://jeremykross.github.io/konstellate/

That one requires a painful number of clicks to navigate and is implemented in clojure, but illustrates the idea.

There was also https://github.com/CATechnologiesTest/yipee.

Our current forms aren't much fancier than these, though I'm hoping we can move the hand-crafted forms to a more guided step-by-step approach.

[bgrant0607]

We'll need this in order to handle arbitrary CRDs, as well as for the long tail of built-in resources.