feat: ATLAS Physlite file for uproot

[ArturU043]

Adding an ATLAS derivation file PHYSLITE for uproot CI tests.
The file contains 100 events in the RNTuple format (EventData).

File built with ROOT 6.34.04 and validated for testing with uproot 5.5.1

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.38%. Comparing base (1895e34) to head (9ad8c41).
Report is 2 commits behind head on main.

Additional details and impacted files

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  Coverage   72.38%   72.38%           
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  Files           3        3           
  Lines         134      134           
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  Hits           97       97           
  Misses         37       37           

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[ariostas]

@ArturU043 thanks for this PR! Just a couple of things:

• Do you know if this PHYSLITE format is relatively finalized? It seems to me like it is not particularly well designed for RNTuple, and I've heard that there's discussions to improve it. Is there some sort of versioning that PHYSLITE uses that we could use to tag this file. The issue is that if the format is updated later we can't simply replace the file since the way this package is set up has some issues with file replacement, so we would need to give it a new name.
• Could you replace the rntp in the naming with rntuple_v1-0-0-0 so that we can more easily keep track of which RNTuple version it is written with?

[ArturU043]

Hi @ariostas

The current version is indeed V1.0.0.0. Some developers are working on fixing some issues with metadata collection with the root Python API, but the current version is practically production-ready. If major changes arise, we can add a new file.

Concerning the first point, this Physlite format is stable for the current Atlas analysis Software releases. The format might be improved in the future with RNtuple compatibility in mind...
In any case, this file's Physlite format is used in many current and future analyses. If the Physlite data structure changes drastically, it won't be so soon.

I changed the file name as you requested.