132 example data and scripts not unified

[MedericFourmy]

• Refactor inference example scripts and cosy/megapose tests
• Deprecate crackers example in favor of barbecue-sauce

[codecov]

Codecov Report

Attention: Patch coverage is 20.27335% with 350 lines in your changes are missing coverage. Please review.

Project coverage is 24.92%. Comparing base (67d74ce) to head (eb0b8d0).

❗ Current head eb0b8d0 differs from pull request most recent head 902416e. Consider uploading reports for the commit 902416e to get more accurate results

Files	Patch %	Lines
...stimators/cosypose/cosypose/training/evaluation.py	0.00%	141 Missing ⚠️
...ypose/toolbox/inference/example_inference_utils.py	38.63%	54 Missing ⚠️
...ypose/cosypose/scripts/run_inference_on_example.py	0.00%	42 Missing ⚠️
...ators/megapose/scripts/run_inference_on_example.py	0.00%	42 Missing ⚠️
...mators/cosypose/cosypose/utils/cosypose_wrapper.py	0.00%	23 Missing ⚠️
...osypose/cosypose/scripts/convert_models_to_urdf.py	0.00%	10 Missing ⚠️
...stimators/cosypose/cosypose/training/train_pose.py	0.00%	6 Missing ⚠️
...ors/cosypose/cosypose/lib3d/rigid_mesh_database.py	0.00%	5 Missing ⚠️
.../cosypose/cosypose/datasets/bop_object_datasets.py	33.33%	4 Missing ⚠️
happypose/toolbox/inference/types.py	33.33%	4 Missing ⚠️
... and 8 more

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #139      +/-   ##
==========================================
+ Coverage   24.48%   24.92%   +0.44%     
==========================================
  Files         211      214       +3     
  Lines       17650    17728      +78     
==========================================
+ Hits         4321     4419      +98     
+ Misses      13329    13309      -20     

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[nim65s]

@codecov: you're making this review super hard, while not being super useful…