use pydantic to validate input describing domain

video_prediction_tools/data_extraction/data_info.py

video_prediction_tools/env_setup/install_venv.sh

video_prediction_tools/env_setup/install_venv_container.sh

video_prediction_tools/env_setup/requirements.txt

...o_prediction_tools/env_setup/requirements_nocontainer.txt

video_prediction_tools/main_scripts/main_data_extraction.py