grid for cmc added

[SimoneAriens]

added grid generation to the cmc pipeline. Tried to stay as close as possible to the matlab version but also to keep it simple

I left the brute force logic of trying to squeeze as much valid data into the cells away for now. If really necessary we can add it later

[github-actions]

Diff Coverage

Diff: origin/main..HEAD, staged and unstaged changes

• packages/scratch-core/src/conversion/surface_comparison/grid.py (100%)
• packages/scratch-core/src/conversion/surface_comparison/models.py (100%)
• packages/scratch-core/src/conversion/surface_comparison/pipeline.py (100%)

Summary

• Total: 54 lines
• Missing: 0 lines
• Coverage: 100%

[github-actions]

Package	Line Rate	Branch Rate	Health
.	96%	88%	✔
comparators	100%	100%	✔
computations	100%	100%	✔
container_models	99%	100%	✔
conversion	96%	83%	✔
conversion.export	100%	100%	✔
conversion.filter	97%	89%	✔
conversion.leveling	100%	100%	✔
conversion.leveling.solver	100%	75%	✔
conversion.plots	98%	88%	✔
conversion.preprocess_impression	99%	91%	✔
conversion.preprocess_striation	89%	58%	✔
conversion.profile_correlator	96%	82%	✔
conversion.surface_comparison	96%	89%	✔
extractors	99%	75%	✔
mutations	100%	100%	✔
parsers	98%	80%	✔
parsers.patches	89%	60%	✔
preprocessors	99%	89%	✔
processors	99%	100%	✔
renders	98%	67%	✔
utils	92%	75%	✔
Summary	97% (3233 / 3321)	84% (346 / 410)	✔

Minimum allowed line rate is 50%