- `GarpixUserPasswordConfiguration` model added
- `ADMIN_PASSWORD_SETTINGS` setting added
- `MIN_SPECIAL_PASSWORD` setting added
- `AVAILABLE_ATTEMPT` settings added
- `PASSWORD_HISTORY` setting added
- `PASSWORD_VALIDITY_PERIOD` setting added
- `PASSWORD_FIRST_CHANGE` setting added
- `is_blocked`, `login_attempts_count`, `password_updated_date`, `needs_password_update` fields added to `GarpixUser` model
- `PasswordHistory` model added
- `change_password_unauthorized` endpoint added