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/gtk/filedlg.h

@@ -76,8 +76,8 @@ private:
 
     wxGtkFileChooser    m_fc;
 
-    DECLARE_DYNAMIC_CLASS(wxFileDialog)
-    DECLARE_EVENT_TABLE()
+    wxDECLARE_DYNAMIC_CLASS(wxFileDialog);
+    wxDECLARE_EVENT_TABLE();
 };
 
 #endif // _WX_GTKFILEDLG_H_