[feature request] Add authentification with smartcard via NFC

[tscharly]

Your use case

What would you like to do?

Login with wireless smartcard on the back of NFC enabled phone. According to @saces prerequirements are met in matrix. Maybe realized by OpenPGP applet.

Why would you like to do it?

To look cool and to make authentification with planned crewID @c-base possible.

Are you willing to provide a PR?

Better not