Summary:
This diff sets up the socket connection between flipper-browser and flipper-server, and verifies that the initial UI initialisation work (e.g. `get-config` command works). The initial RenderHost is initialised as well based on the config and browser APIs.
Note that flipper-ui-core itself isn't started yet, as that has still a plethora of node imports, so Metro will correctly refuse to bundle
Not in this diff
* remove Node usage from flipper-ui-core
* implement all RenderHost APIs
Reviewed By: aigoncharov
Differential Revision: D32644074
fbshipit-source-id: 2c8065caf0191771a3867b69a431ca50eeb7a5a3
5d45bd741b
