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/x11/glcanvas.h

@@ -43,7 +43,7 @@ public:
 protected:
     virtual int GetColourIndex(const wxColour& col);
 
-    DECLARE_CLASS(wxGLCanvas)
+    wxDECLARE_CLASS(wxGLCanvas);
 };
 
 #endif // _WX_GLCANVAS_H_