Nethernet support for joining worlds

[LucienHH]

Majority work for Nethernet support. Supports listening and joining over LAN, signalling via the franchise WebSocket and creating/joining an Xbox session.

To do

• LAN discovery
• Xbox session lookup/creation
• Signalling channel for remote connections
• Move Nethernet protocol to it's own repo?
• Move Session handling to pauth or another repo?
• Merge Add methods for fetching PlayFab and Minecraft Service tokens  prismarine-auth#107
• Handle CONNECTERROR messages received from signalling channel
• Updating docs and index.d.ts
• Tests

Closes #473

[socket-security]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
npm/@jsprismarine/[email protected]	None	0	67.2 kB	herryyt

🚮 Removed packages: npm/[email protected]

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[extremeheat]

Thanks for working on this, please advise when it's ready for review

[LucienHH]

Most the work is done apart from some bits but would probably be good to start moving parts of this out of here into other areas. Mainly moving the contents of ./nethernet, I'd think it'd make sense to have this in a prismarine-nethernet repo maybe?

Same with the Xbox Session API, I think we could get away with putting this in pauth unless you think we should separate an Xbox API to another repo?