Add cifdump CLI utility

[jrobsontull]

Given the recent change by the PDB to no longer provide MTZ files for structures (https://www.rcsb.org/news/feature/66ead31f2c751d5c77fbb706) it would be very useful to have a CLI tool equivalent to mtzdump for CIF files. We plan on using this repo at my workplace and this feature would be of great utility to us.

This was brought up in #229 and the changes are relatively straightforward given that rs can already read CIF files. Most of the logic was taken from the existing mtzdump utility.

Testing

• cifdump can be accessed from the CLI
• cifdump can be used to log the contents of a structure factor CIF file from the PDB
• Docs can be built and new CLI utility appears

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.98%. Comparing base (ca2a590) to head (3264b70).
Report is 3 commits behind head on main.

Additional details and impacted files

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  Coverage   88.98%   88.98%           
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Flag	Coverage Δ
unittests	88.98% <ø> (ø)

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[kmdalton]

This looks great to me. The code is clean and follows the established template from rs.mtzdump. I checked that the command line app works and the docs build and render correctly.

Thanks, @jrobsontull, for a most welcome addition to rs!

[jrobsontull]

Thanks for the welcome @kmdalton!

I just corrected a final typo. Looking forward to contributing elsewhere.

[JBGreisman]

This looks good to me -- rs.cifdump seems to function correctly as an analog to rs.mtzdump. Thanks for the addition!

[JBGreisman]

I triggered the CI workflows, and we can merge this in assuming all passes as expected

[JBGreisman]

Merged in -- thanks for the contribution, @jrobsontull!