CommPanel: changed the action listener for send button
DevToolWindow: changed the constructor
RobotSimulator: added constructor and added field that references the
DevToolWindow
Controller: modified some message stuff
Now we can test our message protocol with the devtool. The user will
need knowledge of the communication protocol because the devtool takes a
message that the user types and sends that. I will reupload after I have
extensively used this to test our message protocol