Add Analytics for Public Apps and overall App Store Analytics

Would be nice to have some app store analytics and general public app analytic.
For example for public apps:
- How many people downloaded a Public App
- How many by OS/Platform/etc
- Net new downloads
For App Store:
- How many users downloaded the store
- How many by OS/Platform/etc
- How many sessions or active users (perhaps by tracking splash screen loads)?

This would help tell the full story of deploy, manage, analyze despite someone not having a private app.