Added a method to create the sample and header data in a dict

[hepcat72]

Summary Change Description

• Added get_approx_sample_header_replacement_regex which returns a regex to heuristically convert common sample headers into database sample names.
• Added build_lcms_dict to turn sample headers from a peak annotation file and mzXML file names into an LCMS dict keyed on the unique header name and containing dicts whose keys are headers of the LCMS metadata format.
• Modified form_valid to call build_lcms_dict with the appropriate arguments.
• Created a class attribute to hold common header suffixes.
• Modified set_files to build the file names if not supplied.
• Added tests for the new methods.

Affected Issues/Pull Requests

• Partially addresses #829
• Partially addresses #888
• Merges into #918
• Next PR: #922

Review Notes

See comments in-line.

Checklist

This pull request will be merged once the following requirements are met. The author and/or reviewers should uncheck any unmet requirements:

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• Associated issue/pull request requirements:
  • [x] All requirements in affected issues marked "resolved" are satisfied
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  • [x] All linters pass
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  • [x] New/changed method tests implemented/updated (or no change)
  • [ ] Updated Unreleased section of changelog.md (or no change)
  • [x] Migrations created & committed (or no change)