DefaultGui.cs: Adjusted the board_KeyPress() method. It no longer sends the command directly to the client. It now only sends a simple String with the name of the pressed key to the client.
Client.cs: Made a new method sendKey() which the gui can call. It gets the pressed key from the gui as a string and sends the corresponding command to the connector.
Connector.cs: Added an if-else-block in the SendCmdToSRV() method to check if the command ends with "\r\n" or not. If not it will add "\r\n".