Add NER task

[adgianv]

Description

Add Named Entity Recognition task

Related Issues

Resolves #10.

Changes Made

• Add Named entity recognition task
• Made changes to the GliNER bridge to support NER
• Includes DSPy, GliNER, Instructor, Langchain, OLLama and Outlines bridges

Checklist

• Tests have been extended to cover changes in functionality
• Existing and new tests succeed
• Documentation updated (if applicable)

Screenshots/Examples (if applicable)

[codecov]

Codecov Report

Attention: Patch coverage is 94.11765% with 18 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
sieves/tasks/predictive/ner/bridges.py	93.96%	14 Missing ⚠️
sieves/tasks/predictive/ner/core.py	94.02%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #86      +/-   ##
==========================================
+ Coverage   92.65%   92.70%   +0.04%     
==========================================
  Files          37       39       +2     
  Lines        2342     2644     +302     
==========================================
+ Hits         2170     2451     +281     
- Misses        172      193      +21     

Files with missing lines	Coverage Δ
sieves/engines/glix_.py	91.07% <100.00%> (+0.50%)	⬆️
sieves/tasks/predictive/core.py	100.00% <ø> (ø)
...es/tasks/predictive/information_extraction/core.py	91.83% <ø> (ø)
sieves/tasks/predictive/ner/core.py	94.02% <94.02%> (ø)
sieves/tasks/predictive/ner/bridges.py	93.96% <93.96%> (ø)

... and 2 files with indirect coverage changes

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[rmitsch]

Regarding the PR template: take a look at how other PRs are structured, yours should follow the same template. GitHub should have given you the same template when you opened the PR?

Also: make sure to mark a PR as draft if it's not ready to be reviewed yet.

[rmitsch]

Test for to_dataset() is missing, otherwise good to go.