iBeacon & Eddystone Scanner

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This is a big one, especially for everybody using the logging feature!

- Rewrote logging architecture
- Added ability to send beacon data to a HTTP API via POST requests
- Added a setting to keep the screen on while scanning
- Added ability to clear the scan list (outdated beacons)
- Added support for EddyStone TLM frames
- Complete rewrite of the underlying app architecture (Flux, baby!)
- Updated all used libraries

Have fun!