clean_playground_data   Clean tracking data (complete pipeline)
fix_tag_replacement     Fix tag replacements in raw data
interpolate_gaps        Interpolate gaps in location tracking data
                        (two-phase approach)
map_ids                 Map raw tracking IDs to standardized child IDs
mark_time_periods       Mark time periods for analysis and bell time in
                        raw data
standardize_to_seconds
                        Standardize location data to fixed time
                        intervals
