Use wx-prefixed macros throughout the repository.

Change {DECLARE,IMPLEMENT}_*CLASS and {DECLARE,BEGIN,END}_EVENT_TABLE
occurrences to use the wx-prefixed version of the macros.

include/wx/gtk/bmpbuttn.h

@@ -40,7 +40,7 @@ public:
                 const wxString& name = wxButtonNameStr);
 
 private:
-    DECLARE_DYNAMIC_CLASS(wxBitmapButton)
+    wxDECLARE_DYNAMIC_CLASS(wxBitmapButton);
 };
 
 #endif // _WX_GTK_BMPBUTTON_H_