We should support NFC tags in addition to CCID with flutter_nfc_kit. Some suggestions:

• extend the FidoApi class with nfc_fido_api.
• design an elegant way of choosing tags when (potentially multiple) CCID readers and NFC are available

Please note that NFC communication might be transient -- so the APIs and lifecycle management might need to be redesigned, i.e. you need to check & poll tags every time when the user triggers communication.