public HandshakeMessage(byte[] rawMsg) : base(rawMsg)
{
Type = MessageType.Handshake;
TransmitOption = Util.ReadByteToEnum<TransmitOption>(rawMsg, 1, 2);
Direction = Util.ReadByteToEnum<Direction>(rawMsg, 3);
MessageBody = BitConverter.ToString(rawMsg, 4, rawMsg.Length - 4);
}