logging and to handle all file naming, storing logs in the backup
directory by default. Made the Loggman class delete logs older than
2 months and create new log files each week. Refactored the
MysqlDatabaseConfig and MysqlDatabaseBackup classes to use the new
Loggman class for logging and added error handling code. Updated the
upload_to_b2 method in MysqlDatabaseBackup to properly handle errors
when listing and deleting old backups in the B2 bucket.
customizable retention and logging
Refactor backup method to dump each database individually
Update delete_old_backups method to remove local backups based on user-defined retention days
Add Loggman class for logging program actions to a logfile and implement log deletion for logs older than a week
Modify MysqlDatabaseConfig class to ask the user for local and B2 backup retention days
Update MysqlDatabaseBackup class to use user-defined retention days for local backups
Refactor upload_to_b2 method to delete B2 backups based on user-defined retention days
Implement various code improvements and refactoring for better readability and maintainability
