Additional implementation of the new connection scheme. It is now possible to send frames to CANConnection objects indirectly based on registered bus number.

This further abstracts the interface. Things are reasonably stable now for frame reception. Initial work has been done to support frame transmission as well. This is currently less stable but mostly working.

connectionwindow.h

@@ -46,6 +46,8 @@ signals:
 public slots:
     void setSpeed(int speed0);
     void setSWMode(bool mode);
+    void sendFrame(const CANFrame *);
+    void sendFrameBatch(const QList<CANFrame> *);
 
 private slots:
     void handleOKButton();
@@ -53,6 +55,7 @@ private slots:
     void handleConnSelectionChanged();
     void handleRemoveConn();
     void handleRevert();
+    void handleNewConn();
     void receiveBusStatus(int bus, int speed, int status);
 
 private: