loadRequestObject
Optional content that needs to be served under the previously passed in requestUrl (see CreationOptions.RequestByReference.requestUrl or CreationOptions.SignedRequestByReference.requestUrl in call to OpenId4VpVerifier.createAuthnRequest) with content type application/oauth-authz-req+jwt (see at.asitplus.wallet.lib.data.MediaTypes.Application.AUTHZ_REQ_JWT).
Pass in the at.asitplus.openid.RequestObjectParameters that the Wallet may have sent when requesting the request object.