OIDC4VP with presentation of several sd-jwt vc

[ThierryThevenet]

if the user select several sd-jwt VC, the response of the wallet must be an array of strings (each sd-jwt as a string.

&presentation_submission=...
&vp_token=["ey.....", "ey...."]

all sd jwt must be referenced in the presentation_submission

{
    "id": "b0db4099-de2d-47da-951f-e10b2cc17808",
    "definition_id": "2_credentials",
    "descriptor_map": [
        {
            "id": "pid_credential",
            "format": "vc+sd-jwt",
            "path": "$[0]"
        },
 {
            "id": "other_credential",
            "format": "vc+sd-jwt",
            "path": "$[1]"
        }
    ]
}