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/motif/dcprint.h

@@ -25,7 +25,7 @@ public:
 
     wxRect GetPaperRect() const;
 
-    DECLARE_CLASS(wxPrinterDCImpl)
+    wxDECLARE_CLASS(wxPrinterDCImpl);
 };
 
 #endif // _WX_DCPRINT_H_