* Rename some files in unit tests.
* Rename `pipelines` folder to `transforms`.
* Fix version requirement range.
* Remove `init_random_seed` and `set_random_seed`.
* Fix unit tests
* Rename `convert_models` to `model_converters`.
* Refactor tools folder structure.
* Modify tools/test.py and add eval_metric.py to analysis test output.
* Add new tools `analyze_logs.py` and `print_config.py`.
* Add comment for analysis_tools functions.