add level0

[jmbhughes]

Adds the punchbowl level 0 code here instead

[codecov]

Codecov Report

Attention: Patch coverage is 99.23664% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 87.59%. Comparing base (db3f8f6) to head (f143a33).
Report is 4 commits behind head on main.

Files	Patch %	Lines
punchpipe/level0/decode_sqrt.py	98.63%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #51      +/-   ##
==========================================
+ Coverage   85.16%   87.59%   +2.43%     
==========================================
  Files          16       18       +2     
  Lines         627      758     +131     
==========================================
+ Hits          534      664     +130     
- Misses         93       94       +1     

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