refactor: rename the column headers for elements of the error report#22

stevenhsd merged 2 commits intodevelop_v05NHSDigital/data-validation-engine:develop_v05from

refactor/gr-ndit-702_rename_columns_in_error_report_outputNHSDigital/data-validation-engine:refactor/gr-ndit-702_rename_columns_in_error_report_outputCopy head branch name to clipboard