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/gauge.h

@@ -14,7 +14,7 @@
 // Group box
 class WXDLLIMPEXP_CORE wxGauge : public wxGaugeBase
 {
-    DECLARE_DYNAMIC_CLASS(wxGauge)
+    wxDECLARE_DYNAMIC_CLASS(wxGauge);
 
 public:
     inline wxGauge() { m_rangeMax = 0; m_gaugePos = 0; }