* Improve GetFillModel()
* Add support for other methods
* Add regresion algos and improvements
* Make Python algorithms regression tests
* Improve unit tests
* Minor changes
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* Python research import improvements
- Improve start.py for research env
- Remove unrequired imports
* Centralize algorithm imports
* Add regression test GH action
* Unit test python import clean up
* Join research and main imports
* More python import clean up
* Fix failing skipped regression algorithm