Improve multidetection and add some calibration plots

[YicunDuanUMich]

• improve the multidetection according to YOLOv10
• add some calibration plots to assess posterior distribution

[codecov]

Codecov Report

Attention: Patch coverage is 73.91304% with 12 lines in your changes missing coverage. Please review.

Project coverage is 81.87%. Comparing base (e857c6f) to head (4c28796).

Files	Patch %	Lines
bliss/encoder/variational_dist.py	65.51%	10 Missing ⚠️
bliss/catalog.py	87.50%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1052      +/-   ##
==========================================
+ Coverage   81.63%   81.87%   +0.24%     
==========================================
  Files          23       23              
  Lines        3006     3013       +7     
==========================================
+ Hits         2454     2467      +13     
+ Misses        552      546       -6     

Flag	Coverage Δ
unittests	81.87% <73.91%> (+0.24%)	⬆️

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[YicunDuanUMich]

Thanks for the review. I'll fix them tomorrow.