Converter from Nexus to ORSO.ort for autoreduced files

[jmborr]

Description of work:

Check all that apply:

• added release notes
  (if not, provide an explanation in the work description)
• updated documentation
• Source added/refactored
• Added unit tests
• Added integration tests

References:

• Links to IBM EWM items: 8865

Manual test for the reviewer

Install in editable mode (pip install -e ./) so that you can run script nexus_to_orso :

cd /path/to/MagnetismReflectometer/mr_reduction-feature/tests/mr_reduction-data/
nexus_to_orso --nexus REF_M_42535_1_Off_Off_autoreduce.nxs.h5 --ort /tmp/REF_M_42535_1_Off_Off_autoreduce.ort

The resulting file should be loadable in refl1d

Check list for the reviewer

• release notes
  updated, or an explanation is provided as to why release notes are unnecessary
• best software practices
  • clearly named variables (better to be verbose in variable names)
  • code comments explaining the intent of code blocks
• All the tests are passing
• The documentation is up to date

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 96.60194% with 7 lines in your changes missing coverage. Please review.

Project coverage is 78.22%. Comparing base (6c10df9) to head (715277d).

Files with missing lines	Patch %	Lines
src/mr_reduction/io_orso.py	90.19%	5 Missing ⚠️
src/mr_reduction/beam_options.py	98.43%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             next      #25      +/-   ##
==========================================
+ Coverage   77.65%   78.22%   +0.56%     
==========================================
  Files          19       21       +2     
  Lines        2278     2360      +82     
==========================================
+ Hits         1769     1846      +77     
- Misses        509      514       +5     

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