Ctgan

Minor version including changes to ensure the logs are properly printed and
the option to disable the log transformation to the discrete column frequencies.

Special thanks to kevinykuo for the contributions!

Issues Resolved:

* Option to sample from true data frequency instead of logged frequency - [Issue 16](https://github.com/sdv-dev/CTGAN/issues/16) by kevinykuo
* Flush stdout buffer for epoch updates - [Issue 14](https://github.com/sdv-dev/CTGAN/issues/14) by kevinykuo

Reorganization of the project structure with a new Python API, new Command Line Interface
and increased data format support.

Issues Resolved:

* Reorganize the project structure - [Issue 10](https://github.com/sdv-dev/CTGAN/issues/10) by csala
* Move epochs to the fit method - [Issue 5](https://github.com/sdv-dev/CTGAN/issues/5) by csala

First Release - NeurIPS 2019 Version.