GitLab

PiperOrigin-RevId: 264300408

* Adding export_dir and model saving for Resnet

* Moving to utils for tests

* Adding batch_size

* Adding multi-gpu export warning

* Responding to CR

* Py3 compliance

* Glint everything

* Adding rcfile and pylinting

* Extra newline

* Few last lints

Create groups of arg parsers and convert the official resnet model to
the new arg parsers.

* Adding logging utils

* restore utils

* delete old file

* update inputs and docstrings

* make /official a python module

* remove /utils directory

* Update readme for python path setting

* Change readme texts