Operations possible: check, refresh, wipe, copy.
Test coverage only on Unit test level atm.
WIP - many TODOs remaining, Device tests not yet done, more error handling necessary.
- access through DebugLink
- card can be initialized with
- serial_number (used for filename and later for shamir backup
functionality)
- capacity in bytes
- manufacturer ID (used for recognition of Trezor card together with
capacity)
- one debug protobuf message added serial_number set to None means
ejecting the card from emulator
- TODO: initialize the card with preexisting data
