Add websocket support and fix port override

[haslinghuis]

• Thanks to @AJ92 to get this started using provided websockets client code, had to fix port override, serial shim and serial backend to get it started.

Requirements

• Needs implementation of websockets in firmware likely https://libwebsockets.org/
• Alternative socket servers: https://github.com/Theldus/wsServer or https://github.com/bsapundzhiev/ucwebsocket

Additional info

• Web Socket Protocol: https://datatracker.ietf.org/doc/html/rfc6455
• Ultimate sockets guide: https://beej.us/guide/bgnet/html/
• https://news.ycombinator.com/item?id=32867644

Alternative protocol

• webtransport: https://ietf-wg-webtrans.github.io/draft-ietf-webtrans-http3/draft-ietf-webtrans-http3.html

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[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[nerdCopter]

how to test? i was able to flash FC.

[AJ92]

how to test? i was able to flash FC.

not related to hw

sitl target needs to be adapted first, if that hasnt been done yet

[haslinghuis]

• Fixes Vue port override.
• This PR adds provisional support for websockets (tested with @AJ92 simulator code).
• Manual mode is broken in PWA without firmware support for websockets or perhaps webtransport.
• Issue is LWS uses cmake instead of make, so have no clue about integrating the library in firmware.