improved retrievals and adaptions to next pyslk release

[neumannd]

• includes changes given in https://github.com/florianziemen/slkspec/tree/reactivate-pyslk
• adapted to pyslk version 2.x.y
• improved recall and retrieval workflow

[neumannd]

@observingClouds Can I prevent somehow that tests are generated automatically for all pyslk functions? Setting up all SlkMock functions properly will take a lot of time.

[observingClouds]

@neumannd can you point me to some tests? I think I cannot completely follow you. You just need to mock those functions that are actually used within slkspec.

[neumannd]

@observingClouds

You just need to mock those functions that are actually used within slkspec.

That's the main issue I have. It is quite time consuming to set up proper mock functions for this purpose. I am aware that this would be the proper proceedure. But, I am lacking time to finished this task in December. Would you merge anyway?

[observingClouds]

I have to say no here as I believe it's crucial for all code additions to pass the tests to maintain the integrity of the project.