Windows: Create native push notification prototype

Create a native prototype with Window Push Notification Service: https://learn.microsoft.com/en-us/windows/apps/design/shell/tiles-and-notifications/windows-push-notification-services--wns--overview

• Start with an example and make it run locally.
• Investigate the server component and how push notifications can be triggered.
• Investigate the build system, the creation of manifests and signatures, registrations with OS, etc.