remove validate_extracted_row method from Validator
add get_field method to Record class
add __str__ methods to Record and Field classes
add validation for requiredIfEmpty - this functionality allows to test group of fields where at least one is required
add validation for requiredIfFilled - this functionality allows to test group of 2 fields where one is required if related field was provided
update README.md for two new validators - requiredIfEmpty and requiredIfFilled
fix test for valid_data
add logging when record is valid
add run parameter for configuration file
update README.md - add usage instruction
update README.md - add requirements