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/dc.h

@@ -55,7 +55,7 @@ public:
         return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY;
     }
 
-    DECLARE_DYNAMIC_CLASS(wxMotifDCImpl)
+    wxDECLARE_DYNAMIC_CLASS(wxMotifDCImpl);
 };
 
 #endif // _WX_DC_H_