Support different formats for RFID member card keys

[laftho]

Currently membercard keys are stored simply as string in the following case sensitive format:

04:02:63:ea:0f:0f:0f

While this is fine if scanning from many devices, others provide the value as an int or different hex formats.

We should fix this to accept and parse different hex type formats. ie 0x040263ea0f0f0f

[TyIsI]

Do we want Nomos to handle this or do the conversion on the terminals? Or I guess it's better to do both?

[laftho]

yea on second thought, I agree with you @TyIsI that we should just simply require the format and clients are responsible for the conversion. If this becomes an issue for some readers or something in the future we can re-open this.

Closing this as wont fix.