[OID4VP] Interoperability tests with another SSI Systems and Wallets

### Proposed feature

Goal: verify that our solution is interoperable with other OIDC VC Issuer/Wallet

### Feature description

Consider using on of the libraries/tools:

OpenID for Verifiable Credential Issuance (OID4VCI)

Wallet (Client)
– [GitHub - walt-id/waltid-ssikit: All-In-One SSI infrastructure toolkit](https://github.com/walt-id/waltid-ssikit) : supports EBSI/ESSIF related Use Cases

Issuer (Authorization Server/Resource Server)
– [GitHub - spruceid/oid4vci-rs](https://github.com/spruceid/oidc4vci-rs)
– [GitHub - spruceid/oidc4vci-issuer](https://github.com/spruceid/oidc4vci-issuer)

Both Wallet and Issuer
– [GitHub - Sphereon-Opensource/OID4VC: OpenID for Verifiable Credentials - modules for issuers, holders and RPs](https://github.com/Sphereon-Opensource/OpenID4VCI)

Both Wallet and Issuer
– [TrustBloc](https://github.com/trustbloc)

### Anything else?

_No response_