Relax requirements around transaction data

Currently we have this requirement in section 5.1:

"The Wallet MUST return an error if a request contains even one unrecognized transaction data type or transaction data not conforming to the respective type definition."

This is is quite prohibitive, for example it means you can never have several versions of transaction_data in a single requests, for example payment_transaction_v1 and payment_transaction_v2. Instead, we should relax the requirement to only apply if the wallet is returned a credential referenced by one of the credential_ids for the transaction data. That way, I can craft a request like this:

{
    "dcql_query": {
        "credentials": [
            {
                "id": "dpc_with_tx_type_a",
                "format": "mso_mdoc",
                "meta": { "doctype_value": "org.example.dpc" },
                "claims": [
                    {
                        "id": "account_number_claim",
                        "path": [ "org.example.dpc", "account_number" ]
                    }
                ],
            },
            {
                "id": "dpc_with_tx_type_b",
                "format": "mso_mdoc",
                "meta": { "doctype_value": "org.example.dpc" },
                "claims": [
                    {
                        "id": "account_number_claim",
                        "path": [ "org.example.dpc", "account_number" ]
                    }
                ],
            }
        ],
        "credential_sets": [
            {
                "required": true,
                "options": [
                    [
                        "dpc_with_tx_type_a"
                    ],
                    [
                        "dpc_with_tx_type_b"
                    ]
                ]
            }
        ]
  },
  "transaction_data": [ "<base64url-encoded_tx_type_a>", "<base64url-encoded_tx_type_b>",
}

where

• base64url-encoded_tx_type_a is for transaction data type A and referencing only dpc_with_tx_type_a
• base64url-encoded_tx_type_b is for transaction data type B and referencing only dpc_with_tx_type_b

It would be good to have this for OpenID4VP 1.1.