Make a build step to deploy as part of a WP plugin

[nylen]

I don't know what this would look like, but it would allow us to improve on https://wordpress.org/plugins/rest-api-console/.

[nylen]

Also, auth will look a bit different here (applications inside wp-admin can use cookie auth for the API, which should mostly "just work", but we want to make sure the UI behaves reasonably).

[rmccue]

FWIW, if/when this is stable, you're welcome to take over the rest-api-console plugin there. In terms of the actual deployment stages, the API release.sh script may be helpful.