grouped keywords and IRS regex chunking
* abandon old branch and rebuild
* removed print for field names, prompts
* pushing as part of leftovers
* IRS regex chunking
* Merged in feature/chunk_term_clean (pull request #262)
chunk_log_added
* chunk_log_added
* Merge remote-tracking branch 'remotes/origin/feature_ac_chunking_clean' into feature/chunk_term_clean
Approved-by: Alex Galarce
* added function for regex based IRS chunking
* shifted regex_match_chunk function to utils
* added helper functions for regex based chunking
* replaced tin_regex function to ac_funcs
* removed prompt for irs_others
* added regex chunking for irs
* removed irs group from smart chunking
* testing functionality for regex based irs fields
* updated return N/A condition
* Merged main into feature_ac_chunking_clean
* file_processing.py edited online with Bitbucket
* added back conditional prompts
* minor fixed for PR
* remove install types
* mering clean branch
* with passed test casses
* added flag for regex based tin execution
Approved-by: Michael McGuinness
Karan Desai