Add TCI CAT Protocol

[mdblack98]

Add TCI CAT Protocol -- both client and threaded server
https://github.com/maksimus1210/TCI/tree/master/doc
Notify info@rf-kit.de when implemented
https://eesdr.com/en/software-en/software-en
https://iw7dmh.jimdofree.com/sunsdr2-pages/tci-esp32s-arduino-libraries/
https://github.com/maksimus1210/TCI/blob/master/doc
Example CAT TCI server from Thetis without websockets
https://github.com/TAPR/OpenHPSDR-Thetis/blob/master/Project%20Files/Source/Console/TCIServer.cs

[mdblack98]

May be able to use libwebsockets https://libwebsockets.org/

This project may be of use to handle the async data from the WebSockets interface.
https://www.codeproject.com/Articles/5321271/Simple-Socket-Protocol-for-Embedded-Systems

Other option is to use this library but it's C++ so need to be able to disable it in configure since C++ is not a standard for the backends. Might not have a C++ compiler on some platforms.
https://github.com/dhbaird/easywsclient

[mdblack98]

3Y0J Dxpedition is using SunSDR's for Bouvet in Jan 2023.
Need to implement TCI capability ASAP.

[LA3QMA]

They have changed the link for the protocol to: https://github.com/ExpertSDR3/TCI
I can ask if they can remove/update the old as this is not up to date regarding audio in/out