Reorganize Curators and Curator CI

[Zethson]

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Based on #2290 (comment)

• Discuss pros/cons of keeping logic in nox + using paths changed like introduced in ✨ Add SpatialDataCurator #2290 vs writing new workflow files that run conditioned on path (like we do in laminhub)
• Can we return a 'skip' for skipped paths?
• Break out the TiledbsomaCurator similar to the SpatialDataCurator
• Revamp the API to get rid of the from_ pattern and introduce proper Curator classes instead
• Put these into a curator module
• Reorganize the docs accordingly to also ensure that all Curator have sufficient information for users
• Create a curator folder in the tests and run those

[Koncopd]

Could you also a quck thing of moving the curator tests from core to its own folder?

lamindb/noxfile.py

Line 214 in 3ce9edd

f"pytest {coverage_args} tests/core/test_curator.py -k test_spatialdata_curator --durations=50",

[Zethson]

Ah yes, sorry, I forgot to add that to the tasks. I had an interation of that in my PR.

[falexwolf]

#2340 (comment)

Edit Lukas: #2340 (comment)