Self consistency 4 tally dimension report

[SteSeg]

Now that the openmc_fusion_benchmark's Tally object is a multi-dimensional array (which has its own convention for dimensions), it may become confusing to navigate all the dimensions: there are new dimensions for every filter, score, nuclides etc. (and with the adaptation of the TMCManager uncertainty quantification method there will be dimension also for perturbations and realizations). Hence, we implemented here the possibility of printing a tally_dimension_report for easy inspection.
Example usage:

import openmc_fusion_benchmarks as ofb

# Get benchmark results file
br = ofb.BenchmarkResults('benchmark_results.h5')

# Extract tally
tally = br.get_tally('tally_name')

# print tally dimension report
print(tally.format_dimension_report())

It should print something like this:

Tally neutron_leakage (id=1)
OFB dims            : ['realization', 'particle', 'surface', 'energy', 'nuclide', 'score']
OFB shape           : (1, 1, 1, 134, 1, 1)
TMC axes            : realization=1
Filter axes         : particle=1, surface=1, energy=134
Nuclide/score sizes : nuclide=1, score=1
OpenMC raw equivalent: (134, 1, 1)  (flat_filters, nuclide, score)

As always, we provide the code for the openmc backend. Code for other backends (e.g. serpent, 'mcnp` etc.) is always welcome.

[coveralls]

Coverage Report for CI Build 24569819966

Coverage increased (+1.1%) to 61.663%

Details

• Coverage increased (+1.1%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 5 coverage regressions across 1 file.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

5 previously-covered lines in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
/usr/share/miniconda3/envs/test-env/lib/python3.13/site-packages/openmc_fusion_benchmarks/tallies.py	5	85.95%

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Coverage Stats

Relevant Lines:	1419
Covered Lines:	875
Line Coverage:	61.66%
Coverage Strength:	0.62 hits per line

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💛 - Coveralls