Sql-sanity-checks

Added

- New connector class for PostgreSQL databases with the name `PostgreSQLConnector`. Also added unit tests for this class, updated the documentation, a few SQL tests and a Python script that serves as an implementation example.

Changed

- Changed the name of the connector class for sqlite from `SQLite` to `SQLiteConnector`.

Fixed

- A typo in the Deployment instructions.

Added

- This Changelog file
- Deployment instructions

Changed

- Refactored the main module sanity_checks to have the default output class, in a different file.
- Improved documentation

Added

- First version of this library in github and as a PyPI package.