Merge branch 'mac-search-menu-check'

Fix check items state in wxSearchCtrl menu under macOS.

See https://github.com/wxWidgets/wxWidgets/pull/2304

include/wx/osx/window.h

@@ -299,6 +299,11 @@ public:
     // Return the DPI corresponding to the given scale factor.
     static wxSize       OSXMakeDPIFromScaleFactor(double scaleFactor);
 
+#if wxUSE_MENUS
+    // Called on the invoking window after handling the menu event.
+    virtual void        OSXAfterMenuEvent() { }
+#endif // wxUSE_MENUS
+
 protected:
     // For controls like radio buttons which are genuinely composite
     wxList              m_subControls;