Embed a console for exploring REST APIs in your content.
Based on Automattic’s WordPress.com Console.
For the console to work properly, the target API will need to:
* respond to versioned requests, specified in the URL (e.g. /api/v1/endpoint)
* expose a /versions endpoint to provide metadata about the API’s different versions
* response example here
* expose a /help endpoint to provide metadata about the API’s endpoints
* response example here
