Support up-to-date offline exports

[SUPERCILEX]

We'll have to let the user connect devices together and then tell us when they're ready to export.

https://developers.google.com/nearby/connections/overview

Things needed for a prototype:

• [ ] #249
• [ ] #243
• [ ] A simple Auto Scout screen briefly explaining the overarching goal and that this feature is a prototype
• [ ] An export all button that retrieves and merges data from all connected devices
• [ ] A list of the connected devices

[andrewda]

FRC-Krawler has this already! 😝 For real though if you have time to do this before March 14 this would be a game changer and would enhance scouting so much when we don't have WiFi at Clackams.