Encode Verifiable Credential as JWT in IATP response

[hemantxpatel]

Description

• EDC requests MIW for a VP via /presentations/query endpoint.
• MIW returns VP as JWT but VC inside VP as JSON-LD.
• EDC accepts VP and VC both as JWT and JSON-LD format.
• This VP is sent to BDRS service to resolve BPN to did mapping.
• BDRS Service returns a 401 error, as it only accepts VP and VC in JWT format only.

Acceptance Criteria

• MIW may return VC as JWT by default.

Additional Information

Started a discussion for enhancement in either EDC / BDRS. In parallel raising issue here, in case it can be handled here.

[hemantxpatel]

I discussed it in EDC Weekly, and tractusx doesn't support VC and VP in JSON-LD format as both are not interoperable.
See the discussion thread I started, eclipse-tractusx/tractusx-edc#1494

[thackerronak]

Currently, the Presentation Creation Config only supports the JSON-LD format, so the SSI library needs to be updated to support VCs in JWT format for creating VPs.

CC @nitin-vavdiya @OSchlienz