Fature: add YAML and JSON AutoML config file parsers

[DanielHieber]

• add cli arguments for json and yaml parser
• add config_file_parser file with logic for yaml and json config file parser
• add validation_classes with pydantic validation classes for config file parsers
• add pydantic as an requirement to requirements.txt and setup.py
• add parser selection to automl main
• change tests for automl_cli to match new cli options
• add tests for config file parser logic