Parse C2PA manifest from CBOR data.
Mirrors ExifTool's JSON::ProcessTag flattening: arrays recurse with the same
tag, hash keys append ucfirst to the parent tag, characters after
non-alphanumerics are capitalized, and byte strings become binary placeholders.
Parse C2PA manifest from CBOR data. Mirrors ExifTool's JSON::ProcessTag flattening: arrays recurse with the same tag, hash keys append ucfirst to the parent tag, characters after non-alphanumerics are capitalized, and byte strings become binary placeholders.