Tensorflow-cloud

* New API remote() to detect if currently in a remote cloud env.
* CI using Github Action.
* Updated README.
* Some minor bug fixes.

New features

* Support for single node Keras tuner workflow.
* Support for TPU training.

Fixes

* Fixed docker build decode errors.
* Default to Py3 for TF docker images.

Others

* New colab notebook example.
* New Auto Keras example.
* Improved ReadMedocs.
* Improved error messages.

* Support for passing colab notebook as entry_point.
* Support for cloud docker build and colab workflow.
* Support for log streaming in colab

* Detailed README with setup instructions and examples.
* Support for running `run` API from within a python script which contains a
Keras model.

First release

* Initial release with support for running a python script on GCP.
* Examples for basic workflows in Keras.