WX: Redirect stdout to console output

Thank Windows for its default console handling.

This fixes std::cout not working on Windows.

Source/Core/DolphinWX/Main.cpp

@@ -107,6 +107,16 @@ bool DolphinApp::OnInit()
   wxHandleFatalExceptions(true);
 #endif
 
+#ifdef _WIN32
+  const bool console_attached = AttachConsole(ATTACH_PARENT_PROCESS) != FALSE;
+  HANDLE stdout_handle = ::GetStdHandle(STD_OUTPUT_HANDLE);
+  if (console_attached && stdout_handle)
+  {
+    freopen("CONOUT$", "w", stdout);
+    freopen("CONOUT$", "w", stderr);
+  }
+#endif
+
   ParseCommandLine();
 
   std::lock_guard<std::mutex> lk(s_init_mutex);