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/docmdi.h

@@ -48,7 +48,7 @@ public:
     }
 
 private:
-    DECLARE_CLASS(wxDocMDIParentFrame)
+    wxDECLARE_CLASS(wxDocMDIParentFrame);
     wxDECLARE_NO_COPY_CLASS(wxDocMDIParentFrame);
 };
 
@@ -79,7 +79,7 @@ public:
     }
 
 private:
-    DECLARE_CLASS(wxDocMDIChildFrame)
+    wxDECLARE_CLASS(wxDocMDIChildFrame);
     wxDECLARE_NO_COPY_CLASS(wxDocMDIChildFrame);
 };