VerifiableCredential "type" storage as simple-json maybe problematic

[mnzaki]

Description

We are hitting some sort of bug that maybe due to some update to react-native-sqlite-storage. I reported it here: andpor/react-native-sqlite-storage#402 (comment)

But this raises another issue, the fact that type is stored as simple-json and that it actually has to match exactly, including the order of the things in the array.

Maybe we should at least enforce some canonical ordering, probably just ASCII sort?

TODO

• think about it

[mnzaki]

Need to see spec, what about ordering
cc @Exulansis @clauxx