Feature: optional std dev cv metric + long bias display

[rushilg99]

No description provided.

[codecov]

Codecov Report

Merging #1077 (4eb0baf) into develop (dcbf231) will decrease coverage by 0.12%.
Report is 1 commits behind head on develop.
The diff coverage is 0.00%.

❗ Current head 4eb0baf differs from pull request most recent head 3fc64d6. Consider uploading reports for the commit 3fc64d6 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1077      +/-   ##
===========================================
- Coverage    65.33%   65.21%   -0.12%     
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  Files           45       45              
  Lines         5083     5086       +3     
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- Hits          3321     3317       -4     
- Misses        1762     1769       +7     

Files	Coverage Δ
macrosynergy/learning/panel_timeseries_split.py	30.83% <0.00%> (-0.40%)	⬇️

... and 1 file with indirect coverage changes