Update README.md

Update requirements.txt

Create requirements.txt

Update test_regime_switching.py

Update test_jump_diffusion.py

Update test_data_collection.py

Update __init__.py

Create test_regime_switching.py

Create test_jump_diffusion.py

Create test_data_collection.py

Create __init__.py

Update __init__.py

Create __init__.py

Delete __init__.py

Create __init__.py