WASMFS socket backend and WISP

[Kveon Lichman]

Hello! Long time user of emscripten here.

I've worked on many projects in the past that required network access, for which I've used a few patches on top of SOCKFS for. However, the project seems to be heading towards WASMFS default, which does not currently support socket emulation.

I'm interested in contributing a new socket backend to WASMFS that supports the wisp protocol, a standard for tcp/udp-over-websockets, used by projects like v86 and scramjet.

Are you accepting contributions for a new backend at this time? Anything else I should know before I go into it?