Feature: Implement client-server websocket communication

[JorchRL]

I already have a local file-server working See #22. Now I need to implement a websocket connection in order to implement a "live reload" feature.

As well as using it as the basis for client-server communication in the future!

• I may want to save files to the file system as binary blobs (maybe). Or to an embedded database (ie. sqlite).

[JorchRL]

See: https://doc.deno.land/deno/stable/~/Deno.watchFs

I could use Deno.watchFs to trigger a "location.reload()" on the client using websockets.

This is nice as I would prefer not having to reload the server (because #24 would be much more difficult to implement if so)

[JorchRL]

Closed in favor of implementing it in a separate library. See #29