Possibly deprecate in favor of ws::createWebSocketStream

I was strolling along the source code of **ws** and found [a function called createWebSocketStream](https://github.com/websockets/ws/blob/HEAD/doc/ws.md#createwebsocketstreamwebsocket-options). I haven't tested it yet, but it seems to do similar things as this library. Should we point users here instead?