Summary:
This sets up the metro bundler for flipper-server, to be able to serve the front end.
Note that this is a setup that is only relevant for development purposes
Done in this diff:
* setup metro
* setup fast refresh
* setup nodemon to be able to refresh on server changes
Not done in this diff
* Setup FlipperServerImpl in the flipper-server
* Load flipper-ui-core in flipper-ui-browser
* Load plugins
* Support options, env vars etc etc
* Make flipper-server stand alone (it is largely self contained, but still requires some static resources like theming)
Reviewed By: passy, aigoncharov
Differential Revision: D32626137
fbshipit-source-id: 47f580356ddf0993392d3b583082b187661727e9
