Upgrading to websockets connection

This repo allows HTTP requests via libp2p. I was wondering if it would be possible to reuse that to upgrade the connections to WebSockets, having then an open stream between the client and the libp2p host, so that both can write data to it.

In other words:

• 1. A similar server defines a /hello endpoint and in the HandleFunc it upgrades the connection to websockets (eg using gorilla/websocket).
• 2. Request is performed, similar to what is currently being done (eg ("libp2p://16Uiu2HAkuYuv5y1oGQSccX5kxYnW6MDZ2QqPi5y6HjL2baUSDP9W/hello")
• 3. Client has access to the stream and can read/write data to it.

i) and ii) should be pretty similar to the examples in this repo, but unsure if iii) is possible or if it even makes sense.

Start by reading the repository's existing libp2p HTTP request and server examples, then trace how a HandleFunc receives and serves a connection. Compare that flow with the proposed /hello upgrade using gorilla/websocket and determine whether the client can retain a bidirectional stream. Done means the feasibility and required API behavior are established, with an example or clear implementation scope if supported.