add support for vdt in generated file

Author: lmoneta

root/tmva/sofie/EmitFromONNX.cxx

@@ -22,6 +22,7 @@ int main(int argc, char *argv[]){
    RModelParser_ONNX parser;
    std::cout << "Parsing file " << argv[1] << std::endl;
    RModel model = parser.Parse(argv[1]);
+   model.SetUseVdt(true);
    model.Generate();
    model.OutputGenerated(outname);