ToDo: Configuration via phone app. or USB

[911RSR]

RaceTemp is lacking an easy way of configuration.
E.g. how to select the number of magnet strips on a racetrack?
Currently only a hypothetical problem (as my magnet strip pickup does not work), but: one could add switches or jumpers for this -- or one could make a phone app for it, or some there could be a config. file.

"USB device" is enabled but not yet used in this project. One could make a file system accessible via the USB.
That file system could hold a config.json file, or maybe something else....