Atacworks

Hotfix: Fix a bug related to dataloader

Key Features:

* Simplified user interface. Single command interface.
* Improved documentation. Launched webpage : https://clara-parabricks.github.io/AtacWorks/index.html
* Improved test coverage
* Package upload to PyPI

Bug fixes:
* Custom config files are now being picked up.
* Tutorials are updated to match expected outputs and output folders

Update bugs related to tutorials.

hotfix. This Release updates the tutorials to use single GPU by default and adds instructions to use multi-GPU training/inference.
Also, fixes a classification mode related bug.

* Tutorials for training and inference.
* Addition of end-to-end tests.
* Addition of setup scripts.
* updating documentation, linting of code.
* Ability to provide multiple input channels for training, inference.
* Introduced config files for setting up training parameters and for defining model structure.