Adds task object-detection

[xadupre]

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 81.57895% with 7 lines in your changes missing coverage. Please review.

Project coverage is 71.46%. Comparing base (1642132) to head (22cab46).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
onnx_diagnostic/tasks/object_detection.py	80.55%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #79      +/-   ##
==========================================
+ Coverage   71.41%   71.46%   +0.05%     
==========================================
  Files          79       80       +1     
  Lines        6922     6960      +38     
==========================================
+ Hits         4943     4974      +31     
- Misses       1979     1986       +7     

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