Extend annex B.4 in OpenID4VP to define IETF sd-jwt vc with and without json-ld processing

[Sakurann]

based on the discussion during the hybrid WG pre-OSW (minutes here)

the scope of work the WG agreed on: "To expand the number of use-case, define how to combine sd-jwt vc and json-ld based payload in way that uses sd-jwt vc as a securing mechanism, and allows to used w3c vcdm claims for business processing (compliance to w3c vcdm is not required)"

Rough consensus seems to be to extend annex B.4 in OpenID4VP to define IETF sd-jwt vc with and without json-ld processing

Next steps. Mainly Kristina and Alen with the help of others align on the proposal and do a PR in openid4vp

also agreement to do it in a way that does not slow down v1.0 publication