MDS3 schema changes

[micolous]

FIDO has changed the MDS3 blob schema without updating the spec:

• MetadataStatement.friendlyNames (affects every entry)

  Appears to be a Map<String, String> of language code to name.

  "friendlyNames": {
    "en-US": "ID-One Card"
  }

• BiometricAccuracyDescriptor.iAPARThreshold (eg: "YubiKey Bio Series - Multi-protocol Edition")

  {
      "userVerificationMethod": "fingerprint_internal",
      "baDesc": {
          "selfAttestedFRR": 0.0,
          "selfAttestedFAR": 0.0,
          "iAPARThreshold": 0.0,
          "maxTemplates": 12,
          "maxRetries": 8,
          "blockSlowdown": 0
      }
  },

  Unclear what we do with this.

• StatusReport.certificationProfiles (eg: "Ensurity AUTH BioPro")

  "certificationProfiles": ["consumer"],

fido-mds treats all unknown fields as errors (because it could be security sensitive).

I've emailed FIDO asking for this to be documented properly – so fixing this properly may be blocked on them.