Meeco integration: support credentials and data revocation

[anvabr]

Problem description

Currently Guardian users are able (see #2428 and #2134) to use Meeco wallet for user authentication. Guardian data architecture, based on the concept of Verifiable Credentials and Verifiable Presentations, supports revocation of user credentials, data, and soon issued tokens (NFTs). Meeco wallet also supports revocations of user credentials. Both these revocation mechanisms need to be supported by Meeco-Guardian integration, coordinated to be in sync, and visible/discoverable in Guardian trustchain.

Requirements

Exact requirement for the product - what needs to be done?

Definition of done

How do we know we've fully dealt with it?

Acceptance criteria

What are the criteria by which we determine if the issue has been resolved?

[anvabr]

Tagging @sergmetelin @derek-meeco @dubgeis @jimboejones for visibility, please add clarifications/suggestion/extensions of the problem description and/or requirements.