oracle db disaster recovery: fixes and improvements

...oracle_db_disaster_recovery/oracle_check_closed_ondisk.py

...e_db_disaster_recovery/oracle_check_closed_transferred.py

...saster_recovery/oracle_create_missing_and_close_opened.py

...racle_db_disaster_recovery/oracle_db_disaster_recovery.py

...ionTools/oracle_db_disaster_recovery/oracle_run_status.py

...overy/oracle_sync_transferred_files_to_lbs_and_streams.py