Redo hit test priorities in TrackPanel...

Zoom tool takes precedence;

Otherwise do special hits appropriate to the track subclass -- and only
WaveTrack here uses Tools toolbar state, and now disallows clicks on things
when they are not drawn because the view is spectrogram;

Finally, default to right button zooming in Multi tool, or to time shift in
that tool, or to selection adjustment in Multi or in Select tool.

src/WaveTrack.h

@@ -103,9 +103,10 @@ class AUDACITY_DLL_API WaveTrack final : public PlayableTrack {
 
    virtual ~WaveTrack();
 
-   HitTestResult HitTest
+   HitTestResult DetailedHitTest
       (const TrackPanelMouseEvent &event,
-       const AudacityProject *pProject) override;
+       const AudacityProject *pProject, int currentTool, bool bMultiTool)
+      override;
 
    double GetOffset() const override;
    void SetOffset(double o) override;