add infer code

recommend-model-produce/src/main/python/models/dssm/config_ps.yaml

@@ -33,7 +33,7 @@ runner:
   infer_load_path: "output_model_dssm"
   infer_start_epoch: 0
   infer_end_epoch: 1
-
+  infer_reader_type: "QueueDataset"
 hyper_parameters:
   optimizer:
     class: adam