Save/Load orb_params_database (sqlite3)

[ymd-stella]

What issue is the feature request related to?

orb_params_database is not saved to sqlite3.
Parameters are loaded from yaml files.

Describe the solution you'd like

Save/Load orb_params_database to/from sqlite3 database.

How to achieve this

• Save orb_params_database to sqlite3 database.
• Load orb_params_database from sqlite3 database.

Describe alternatives you've considered

It may be sufficient to include a description in the documentation or output a message at runtime.

Additional context

Related to #269.