Fix Parser Docs

[JSabadin]

Purpose

Make the LuxonisParser docs clearer by documenting the directory structure of each dataset type.

Specification

None / not applicable

Dependencies & Potential Impact

None / not applicable

Deployment Plan

None / not applicable

Testing & Validation

None / not applicable

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.29%. Comparing base (f3af7d7) to head (31b2ff3).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #365      +/-   ##
==========================================
- Coverage   95.31%   95.29%   -0.02%     
==========================================
  Files         104      104              
  Lines        6401     6401              
==========================================
- Hits         6101     6100       -1     
- Misses        300      301       +1     

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