add ldv_migrate script

README.md

atdb_csv_gen/setup.py

ldv_migrate/build.sh

ldv_migrate/ldv_migrate/__init__.py

ldv_migrate/ldv_migrate/connection/__init__.py

ldv_migrate/ldv_migrate/connection/config.py

ldv_migrate/ldv_migrate/connection/database.cfg

ldv_migrate/ldv_migrate/connection/retrieve_db_connection.py

ldv_migrate/ldv_migrate/connection/test.py

ldv_migrate/ldv_migrate/ldv_specification_interface.py

ldv_migrate/ldv_migrate/migrate_ldvadmin_to_ldvspec.py

ldv_migrate/requirements.txt

ldv_migrate/setup.py