[ENH] ScoringSheet and ScoringSheetViewer widgets added

[ZanMervic]

Issue

Added Scoring Sheet and Scoring Sheet Viewer widgets (transferred from the prototypes addon).

Description of changes

• Transferred two new widgets from the prototypes addon: the Scoring Sheet and Scoring Sheet Viewer.
• Included documentation and tests for both widgets.

Notice

One of the additions is the FasterRisk source code, copied from the following repository: https://github.com/jiachangliu/FasterRisk.

This inclusion serves as a temporary solution to address compatibility and functionality issues arising from the strict requirements of the original package. It will remain in place until the original maintainer updates the package to resolve these issues.

Includes

• Code changes
• Tests
• Documentation

[markotoplak]

@ZanMervic, could you check and fix the test errors? For starters, this learner needs to be usable without parameters (just make up some defaults) and needs to be imported in the correct module:

https://github.com/biolab/orange3/actions/runs/9328865142/job/25680578428?pr=6817

It should also be somehow obvious that fasterrisk is not another module with Orange learners. I would suggest making a classification.utils and put fasterrisk there.

[codecov]

Codecov Report

Attention: Patch coverage is 84.41558% with 72 lines in your changes missing coverage. Please review.

Project coverage is 88.38%. Comparing base (9497b39) to head (12bd5a1).
Report is 14 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6817      +/-   ##
==========================================
- Coverage   88.40%   88.38%   -0.02%     
==========================================
  Files         326      329       +3     
  Lines       71971    72435     +464     
==========================================
+ Hits        63624    64023     +399     
- Misses       8347     8412      +65     

[markotoplak]

With one failing tests I noticed that this learner is not reproducible (the same learner can yields different results in multiple runs). I fixed one test, but this problem could also appear elsewhere.

To make this learner behave as other Orange learners, we need to make it reproducible. I tried looking at it, but could not find a quick way to do it. This probably stems from the fasterrisk library.

[markotoplak]

Test coverage is relatively low and should be improved in the future.