Add support for Mac dock icon bouncing. I used a cross-platform enum so that we can (ideally) craft a cross-platform API for 3.0.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@53370 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mac/carbon/app.h

@@ -74,6 +74,8 @@ public:
     WXEVENTHANDLERREF    MacGetCurrentEventHandlerCallRef() { return m_macCurrentEventHandlerCallRef ; }
     void MacSetCurrentEvent( WXEVENTREF event , WXEVENTHANDLERCALLREF handler )
     { m_macCurrentEvent = event ; m_macCurrentEventHandlerCallRef = handler ; }
+    
+    void MacRequestUserAttention(wxNotificationOptions options);
 
     // adding a CFType object to be released only at the end of the current event cycle (increases the
     // refcount of the object passed), needed in case we are in the middle of an event concering an object
@@ -101,6 +103,7 @@ public:
     static long           s_macPreferencesMenuItemId ;
     static long           s_macExitMenuItemId ;
     static wxString       s_macHelpMenuTitleName ;
+    static void*          s_macNotificationRecord ;
 
     WXEVENTREF            MacGetCurrentEvent() { return m_macCurrentEvent ; }
     void                  MacHandleOneEvent( WXEVENTREF ev ) ;