Datasync example that includes authentication, personal tables, and client-side schema migrations

[edalatpour]

I recently built a personal planner app called Ben that was just published in the Microsoft store for Windows desktop (iOS version coming soon). As I was building it, I kept coming to this group with questions about how to implement certain capabilities that were left as homework assignments in the documentation. So I thought it might be useful to share in case others might be looking for similar patterns. Feel free to browse the code at https://github.com/edalatpour/Ben and let me know if you have any questions or suggestions.