Convert justifier tool to operate on csv's rather than excel sheets

This template is ONLY used for enhancement requests. Bug reporting or new feature request issues should use the other template options for issue submission.

Current Behavior

Justifications are written to the excel spreadsheets after creating the spreadsheet using the csvs.

Purpose

Add justifications directly to the csvs to support Stargate and clean up the process of exporting the csvs to excel spreadsheets.

Plan

• Remove justifier.py, and separate csv-output into two .py files, pipeline-csv-gen.py and excel-convert.py
• Output all justifications to the csvs

Acceptance Criteria

• Justifications are written to the csv files
• Spreadsheets keep their original format