Adds Level 3 flow, cleans up parameters for Level 1, fixes deficient pixel uncertainty

[jmbhughes]

PR summary

• Adds a basic Level 3 flow
• Cleans up the Level 1 flow to take calibration paths instead of PUNCHData
• Fixes deficient pixel uncertainty direction
• adds codecov yaml

Associated issue number: closes #134

Todos

• make sure tests pass
• add documentation for deficient pixel

[codecov]

Codecov Report

Attention: Patch coverage is 89.61039% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 93.65%. Comparing base (468edb4) to head (776fec3).
Report is 2 commits behind head on main.

❗ Current head 776fec3 differs from pull request most recent head c9d465f. Consider uploading reports for the commit c9d465f to get more accurate results

Files	Patch %	Lines
punchbowl/level1/deficient_pixel.py	80.95%	4 Missing ⚠️
punchbowl/level3/f_corona_model.py	69.23%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #139      +/-   ##
==========================================
- Coverage   94.17%   93.65%   -0.53%     
==========================================
  Files          28       28              
  Lines        1820     1812       -8     
==========================================
- Hits         1714     1697      -17     
- Misses        106      115       +9     

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