http.websockets: Initial commit

http.websockets: Initial commit

Need to factor out add-origin-header and handling the connections. The
http integration is a little sloppy as well.

Try this:

"demo.piesocket.com/v3/1?api_key=oCdCMcMPQpbvNjUIzqtvF1d2X2okWpDQj4AwARJuAgtjhzKxVEjQU6IdCjwm&notify_self=1"

<get-request> add-websocket-headers http-request* nip
[ in>> stream>> ] [ out>> stream>> ] bi dup .
[
    ! "hello" f 1 f send-websocket-text
    [ B default-handle-websocket ] read-websocket-loop
] with-streams