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.

samples/ipc/baseclient.cpp

@@ -107,7 +107,7 @@ private:
 // implementation
 // ============================================================================
 
-IMPLEMENT_APP_CONSOLE(MyApp)
+wxIMPLEMENT_APP_CONSOLE(MyApp);
 
 // ----------------------------------------------------------------------------
 // MyApp