Implement histogram trace type

[tpvasconcelos]

Description

Implement histogram binning and trace_type="bar"

Related issues

closes #194

PR check list

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📚 Documentation preview 📚: https://ridgeplot--287.org.readthedocs.build/en/287/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (9be16d1) to head (3e46c04).
Report is 108 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #287   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           13        18    +5     
  Lines          549       645   +96     
  Branches        73        81    +8     
=========================================
+ Hits           549       645   +96     

Flag	Coverage Δ
combined-src	99.37% <100.00%> (+0.10%)	⬆️

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[tpvasconcelos]

Review these changes 👇