- Added support for importing 'periodes' data and adjusted related SQL scripts.
- Introduced a new SQL preparation script to set up the import schema.
- Updated the import_all_csv.sh script to handle new CSV files and tables.
- Implemented checks for required SQL files and improved error handling.
- Modified data types and structures in the import process for better consistency.
- Created a new remove-import-data.sql script to clean up imported data effectively.
- Enhanced the handling of postal codes and addresses in the import logic.
- Added comments and structured the SQL scripts for better readability and maintainability.
