Adding distributional preservation metrics

[juaristi22]

Fix #125
Fix #116

[codecov]

Codecov Report

❌ Patch coverage is 88.29787% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.69%. Comparing base (af1ed01) to head (e504da2).
⚠️ Report is 14 commits behind head on main.

Files with missing lines	Patch %	Lines
microimpute/utils/data.py	82.35%	6 Missing ⚠️
microimpute/comparisons/metrics.py	93.75%	3 Missing ⚠️
microimpute/models/matching.py	81.81%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #127      +/-   ##
==========================================
+ Coverage   74.49%   76.69%   +2.19%     
==========================================
  Files          22       23       +1     
  Lines        2580     2849     +269     
==========================================
+ Hits         1922     2185     +263     
- Misses        658      664       +6     

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