Implementation of use_sed_temp options

[xaviernogueira]

Closes #45

@jrutyna @sjordan29 @aufdenkampe @kewalak @imscw95

use_sed_temp is now implemented! For TSM you can simply pass in use_sed_temp=False to EnergyBudget().

I also added test coverage for it, both a unit test to make sure the boolean logic works, and a calculations test based on the Excel file.

Unrelated: I also adjusted codecov.yml to not "fail" PRs over line-based coverage on added code. I kept the one that expects coverage to stay the same or increase overall. This is because lines can be identified as missed erroneously for small patches, especially with PEP8 formatting.

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (b1c9997) 38.53% compared to head (d26244f) 38.58%.
Report is 3 commits behind head on main.

Files	Patch %	Lines
src/clearwater_modules/tsm/processes.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #59      +/-   ##
==========================================
+ Coverage   38.53%   38.58%   +0.05%     
==========================================
  Files          33       33              
  Lines        1160     1161       +1     
==========================================
+ Hits          447      448       +1     
  Misses        713      713              

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