Create an AppUserModelId

Figure out how to create an app user model ID for the launcher and put everything in place which is required to use it. This is necessary to generate Windows 10 toast notifications.

The installer must handle some of the setup, see this article about NSIS and AppUserModelID; https://stackoverflow.com/questions/5438651/launch4j-nsis-and-duplicate-pinned-windows-7-taskbar-icons

Note: A start menu icon is required for this to work. See https://docs.microsoft.com/en-us/uwp/api/Windows.UI.Notifications.ToastNotificationManager for more info