Add basic jackknife for information imbalance (WIP)

[AldoGl]

Proposed changes

• A basic estimator for mean and standard deviation of the information imbalance using the Jackknife method

• A new module and a new class to conveniently manipulate different datasets (eventually it would be a good idea to move here many of the information imbalance methods)

Types of changes

What types of changes does your code introduce?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

[AldoGl]

@imacocco you already gave a look at the changes. I still need to fix the docs test but let me know if the rest looks ok

[codecov-commenter]

Codecov Report

Patch coverage: 92.10% and project coverage change: +0.18% 🎉

Comparison is base (807a60d) 80.10% compared to head (3799b8c) 80.29%.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #98      +/-   ##
==========================================
+ Coverage   80.10%   80.29%   +0.18%     
==========================================
  Files          14       15       +1     
  Lines        2393     2431      +38     
==========================================
+ Hits         1917     1952      +35     
- Misses        476      479       +3     

Files Changed	Coverage Δ
dadapy/data_sets.py	91.89% <91.89%> (ø)
dadapy/__init__.py	100.00% <100.00%> (ø)

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[AldoGl]

Tests passing!