MJCF to SDFormat: Add worldbody and body lights

[ahcorde]

Signed-off-by: ahcorde ahcorde@gmail.com

🎉 New feature

Summary

MJCF to SDFormat: Add worldbody and body lights

Checklist

• [x] Signed all commits for DCO
• [x] Added tests
• [ ] Added example and/or tutorial
• [ ] Updated documentation (as needed)
• [ ] Updated migration guide (as needed)
• [ ] Consider updating Python bindings (if the library has them)
• [x] codecheck passed (See contributing)
• [x] All tests passed (See test coverage)
• [x] While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov[bot]]

Codecov Report

Merging #41 (12b5e41) into main (c5c504d) will increase coverage by 0.26%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #41      +/-   ##
==========================================
+ Coverage   97.27%   97.53%   +0.26%     
==========================================
  Files          15       16       +1     
  Lines         513      568      +55     
==========================================
+ Hits          499      554      +55     
  Misses         14       14              

Impacted Files	Coverage Δ
...f_to_sdformat/mjcf_to_sdformat/converters/light.py	100.00% <100.00%> (ø)
...cf_to_sdformat/mjcf_to_sdformat/converters/link.py	100.00% <100.00%> (ø)
...f_to_sdformat/mjcf_to_sdformat/converters/world.py	95.23% <100.00%> (+1.12%)	:arrow_up:

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