Enumerate third-party services

[fiskus]

Description

TODO

• Unit tests
• Automated tests (e.g. Preflight)
• Confirm that this change meets security best practices and does not violate the security model
• Documentation
  • Python: Run build.py for new docstrings
  • JavaScript: basic explanation and screenshot of new features
  • Markdown somewhere in docs/**/*.md that explains the feature to end users (said .md files should be linked from SUMMARY.md so they appear on https://docs.quiltdata.com)
  • Markdown docs for developers
• Changelog entry (skip if change is not significant to end users, e.g. docs only)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 38.43%. Comparing base (4304d70) to head (84c905e).
Report is 96 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #4040    +/-   ##
========================================
  Coverage   38.43%   38.43%            
========================================
  Files         718      718            
  Lines       33051    33051            
  Branches     4670     4842   +172     
========================================
  Hits        12704    12704            
  Misses      19723    19723            
  Partials      624      624            

Flag	Coverage Δ
api-python	90.75% <ø> (ø)
catalog	11.50% <ø> (ø)
lambda	87.96% <ø> (ø)

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[fiskus]

Adds additional burden for maintaining