Create a server and serve a html page that will accept commands

Modes of operation
==================

Running(dev)
------------
- in ui folder run `npm start`
- in root folder run `npm run watch`
- Update Editor.tsx in ReactNativeTSProjeect to point to the localhost:3000 port for the cli iframe

Running(prod)
-------------
- `npx --package=@apptile/cli apptile-cli`
- or to run it locally in prod mode. 
- do a build `npm run build` in root
- then run `npm start`
- change Editor.tsx to point to `PLUGIN_SERVER_URL` route

Publishing
----------
just run `npm publish --access public`