Close the connection to another system.
target defines which system to close the connection to. If we are a client the only possible
connection to close is the server connection, if we are a server the target player will be kicked off.
sendDisconnectionNotification, enables or disables notifications being sent to the other end. If disabled the connection is dropped, if not a disconnect notification is reliably sent to the remote party and there after the connection is dropped.
no example available in C#