WebSocketSharp does not look like properly maintained

[eyalpd-lmt]

Maybe worth investigating mentioning this/removing from the repo.

https://github.com/sta/websocket-sharp/issues/748 https://github.com/sta/websocket-sharp/issues/542#issuecomment-755396963 https://github.com/dotnet/docs/issues/43001

[Mazyod]

Good call, I think there have been much better alternatives in recent years. Will work on replacing the default and perhaps remove websocket-sharp.