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/msw/gauge.h

@@ -71,7 +71,7 @@ private:
     void SetIndeterminateMode();
     void SetDeterminateMode();
 
-    DECLARE_DYNAMIC_CLASS_NO_COPY(wxGauge)
+    wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxGauge);
 };
 
 #endif // wxUSE_GAUGE