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/dcprint.h

@@ -56,7 +56,7 @@ protected:
     wxPrintData m_printData;
 
 private:
-    DECLARE_CLASS(wxPrinterDCImpl)
+    wxDECLARE_CLASS(wxPrinterDCImpl);
     wxDECLARE_NO_COPY_CLASS(wxPrinterDCImpl);
 };