Added a serial console to the connection window which can be used to

figure out what is going on with a connected device. Currently really
only useful for GVRET style devices.

connections/canconnection.h

@@ -91,6 +91,11 @@ signals:
      */
     void status(CANCon::status pStatus);
 
+    /**
+      * @brief Event sent when device has done something worthy of debugging output.
+      * @param debugString: String based output to show for debugging purposes
+      */
+    void debugOutput(QString debugString);
 
 public slots:
 
@@ -175,6 +180,8 @@ public slots:
      */
     bool removeAllTargettedFrames(QObject *receiver);
 
+    void debugInput(QByteArray bytes);
+
 protected:
 
     //determine if the passed frame is part of a filter or not.