Please add support for simulating the menu key

Please add the possibility to simulate the menu key via @sendkey:menu and DOpus.SendKey("menu"). This should be very easy, and with that and the variant with prepended shift+, you'd have the possibility in a use case like this to show the regular as well as the extended context menu (as opposed to simulating Shift+F10). (This is not to say that I can currently say that this would be the approach of choice in my use case, but it extends the possibilities.)