update cost functions for thermal dispatch no min

[rodrigomha]

Closes #1221

[jd-lara]

@rodrigomha do we need to make this a more specific type?

[rodrigomha]

It depends. The function just replace the data in the value curve with a new value curve, always assuming that the new point data comes in per-unit, so it does not really matter whatever the original data was from (Incremental or Point or Average).

Alternatively, using something like PSY.CostCurve{PSY.PiecewisePointCurve} and PSY.FuelCurve{PSY.PiecewisePointCurve} would work for the purposes of this PR, and will only work if the data comes from a PointCurve.

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 77.08%. Comparing base (ebe76d3) to head (8f46584).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/utils/powersystems_utils.jl	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1223      +/-   ##
==========================================
- Coverage   77.18%   77.08%   -0.10%     
==========================================
  Files         122      122              
  Lines       13561    13566       +5     
==========================================
- Hits        10467    10458       -9     
- Misses       3094     3108      +14     

Flag	Coverage Δ
unittests	77.08% <60.00%> (-0.10%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ices/common/objective_function/piecewise_linear.jl	87.38% <100.00%> (+0.05%)	⬆️
src/utils/powersystems_utils.jl	63.55% <50.00%> (+1.41%)	⬆️

... and 4 files with indirect coverage changes

[github-actions]

Performance Results

Version	Precompile Time
Main	5.858162233
This Branch	5.977440952

Version	Build Time
Main-Build Time Precompile	66.654075766
Main-Build Time Postcompile	0.850279878
This Branch-Build Time Precompile	70.106747563
This Branch-Build Time Postcompile	0.858365784

Version	Solve Time
Main-Solve Time Precompile	616.358063714
Main-Solve Time Postcompile	588.70680338
This Branch-Solve Time Precompile	1543.965560512
This Branch-Solve Time Postcompile	1510.845480125