* Add PII Tag and Sensitivity Level enums.
* Add feature-extraction for PII classification tasks
* Add faker as test dependency
* Add unit tests for presidio tag extractor
* Add PIISensitivityTags enum and update sensitivity mapping logic
* Add Presidio utility functions for PII analysis
* Extend column name regexs for PII
* Add tests for PAN, NIF, SSN entities
* Fix version of faker to prevent flaky tests. Fix failing tests.
* Add Generated to State enum
* Integrate PIISensitive classifier to PIIProcessor