Feat/unit test setup

[Eysteinn-Orn]

Units tests and Github Actions for running tests

Adding unit tests and github actions such that when any one of us pushes or pulls to dev we have to pass the unit tests.

How to test

• run poetry run pytest in your console in the root folder of the project.
• automatic linting with GHA

[Eysteinn-Orn]

The GHA seems to be working correctly now but I just need the import to work correctly now in the test file itself

[Eysteinn-Orn]

It seems that adding __init__.py to Every directory fixes the problem regarding imports and also removing all relative imports, additionally we have to rename the types folder since by adding a __init__.py it becomes a package and tries to overwrite an existing python package so I propose to rename that folder to 'typings' but we could also do 'definitions'.

The way I am solving this problem doesn't seem right but it does get the tests running

[njallskarp]

Really great addition to the codebase @eysta00, adding a few comments for improvements.

[Eysteinn-Orn]

Kinda stuck on this problem of when importing pytorch, no matter what, I get an import error in the github action workflow.

Honestly the way to fix this just momentarily is to decouple the evaluate_model function from metrics.py, but that won't fix the underlying problem of Github Actions having none of the CUDA libraries, been stuck on this for the last two days.

Going to come back to this in the evening and rework the actual tests to just be better.

If we run our own Github Actions server with a GPU then this should be no problem but that is also a whole new can of worms.

[Eysteinn-Orn]

Managed to get Pytorch to import correctly using the CPU version of Pytorch, however now there seems to be some version incompatibilities with importing the RobertaForQuestionAnswering transformer