Add support for creating VC2.0 Presentations

[paullatzelsperger]

Feature Request

Support to create verifiable presentations, that conform to the VCDM2.0 specification, should be added.

Specifically, VPs must be secured using enveloping proofs using JOSE (JWT).

eclipse-edc/Connector#4707 will amend the CredentialFormat enum, which will then contain constants for VC2.0 JOSE.

Which Areas Would Be Affected?

VerifiablePresentationServiceImpl -> PresentationCreatorRegistry

Why Is the Feature Desired?

compliance with the DCP specification

Solution Proposal

implement an additional PresentationGenerator, that can produce VCDM2.0 presentations.

putting VCDM1.1 credentials in a VCMD2.0 presentation is disallowed and should result in a warning log. If a VCDM1.1 credential is encountered, it should be represented in a VCDM1.1 presentation.