Timegan

Fix an inconsistency regarding python version between README and poetry (see 2).

**Full Changelog**: https://github.com/det-lab/TimeGAN-Static/compare/v0.1.8...v0.1.9

*This is a test of the release system, but is still a functional release.*

Updated train_timegan_times to take in an out_filename paramater

Integrated timed feature in main script.
Test script added
Minor bug fixes

Minor Changes to fix workflow issues

Directory management for stock data loading