Update unit-test scripts

[JosephSefara]

[vukosim]

@JosephSefara could you update the details on what you need here.

[JosephSefara]

Create unit tests scripts for dependencies and other modules. This can somehow solve issue #18 provided we do not enforce version number of dependent library, see line 45 in setup.py

[DanWertheimer]

Might be worth looking into migrating from setup.py to pyproject.toml using poetry. It's considered best practice. See here .