Add a field to the status bar to show the state of Audacity, eg play/record/play pause. This is useful so that screen readers can easily read audacitys state.

src/Project.h

@@ -397,6 +397,8 @@ class AUDACITY_DLL_API AudacityProject:  public wxFrame,
    LyricsWindow* GetLyricsWindow() { return mLyricsWindow; }
    MixerBoard* GetMixerBoard() { return mMixerBoard; }
 
+   wxStatusBar* GetStatusBar() { return mStatusBar; }
+
    // SelectionBarListener callback methods
 
    virtual double AS_GetRate();