DONT/WONT case should read byte to the end of IAC

[crrrrrrystal]

case (int)Commands.Dont:
case (int)Commands.Wont:
        // We should ignore Don't\Won't because that is the default state.
        // Only reply on state change. This helps avoid loops.
        // See RFC1143: https://tools.ietf.org/html/rfc1143
        return Task.CompletedTask;

The next byte read as a common content, for example 'ff fe 1f' will read '1f' as ','

[9swampy]

@A9G-Data-Droid