title: Tensorflow 2.0 : frozen graph support
body: <p>Will the support for frozen graph continue in tensorflow 2.0 or deprecated?
  I mean the scripts and APIs to create/optimize frozen graph from saved_model. Also the APIs to run the inference for the same. </p>
  
  <p>Assuming it will be supported in future, what is the recommended method to run the inference on frozen graph in tensorflow 2.0 ?</p>