Function imported_purpose_records_from_paths 

fn imported_purpose_records_from_paths<E, F>(
    config: &AtlasMapConfig,
    paths: &RepoPaths,
    read_text: &mut F,
) -> Result<Vec<ImportedPurposeRecord>, E>
where
    E: From<AtlasMapError>,
    F: FnMut(&Path) -> Result<String, E>,

Extract approved purpose rows from one already-selected path inventory.