[keycloak - OID4VCI] Extend AbstractOIDCProtocolMapper for credentials

[francis-pouatcha]

This is a proxy of:

• [OID4VCI] Extend AbstractOIDCProtocolMapper for credentials keycloak/keycloak#32957

[nitch2019]

need clarification with @francis-pouatcha / @IngridPuppet

[nitch2019]

will try another way to implement the ticket with support of @IngridPuppet

[nitch2019]

need clarification with @francis-pouatcha

[nitch2019]

First Analyzing how the client scope work on KC

[IngridPuppet]

Meeting to plan with @francis-pouatcha

[Ogenbertrand]

Currently working on debugging some failing tests. I'll round up after my holidays.

[IngridPuppet]

Removed from the epic at Keycloak.

[francis-pouatcha]

@Awambeng is working on a modification of the CredentialBuilder to allow the OID4VCProtocolMapper to be defined in the ClientScope.