propose creating a new file sharing widget that makes it easy for apps to include this functionality

[nickelskevin]

Is your feature request related to a problem? Please describe.
It would be nice to add a widget that makes it easy to developers to securely share files between people using their app.

Describe the solution you'd like
Store and forward is most important, but it would be great to give the options to:

1. share using store and forward with temporal storage
2. share from existing location via url
3. share via streaming connection

Describe alternatives you've considered
Continue to use our sample apps as examples and open source them.

Additional context
This is likely to be a good candidate for SEO optimization.

[ksanty]

@nickelskevin flagging for arch call discussion