Refactor internal CCD

[padix-key]

• Include all columns from selected categories in internal CCD.
• Find best compression of internal CCD using structure.pdbx.compress().
• Functions like amino_acid_names() use CCD directly, rather than an extra file, but the results are chached.
• The internal CCD is removed form version control, but are included in the built distribution in the CI. Therefore the shipped internal CCD is always up-to-date at the date of release
• The internal CCD can be overwritten via set_ccd_path().

[codspeed-hq]

CodSpeed Performance Report

Merging #687 will not alter performance

_{Comparing padix-key:ccd (cf08dff) with main (54cd5e5)}

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Summary

✅ 45 untouched benchmarks