Add inelastic power loss to PlasmaPhase

[BangShiuh]

Changes proposed in this pull request

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Checklist

• The pull request includes a clear description of this code change
• Commit messages have short titles and reference relevant issues
• Build passes (scons build & scons test) and unit tests address code coverage
• Style & formatting of contributed code follows contributing guidelines
• The pull request is ready for review

[codecov]

Codecov Report

Attention: Patch coverage is 92.10526% with 3 lines in your changes missing coverage. Please review.

Project coverage is 74.36%. Comparing base (acf3f0e) to head (24bbab2).
Report is 25 commits behind head on main.

Files with missing lines	Patch %	Lines
include/cantera/kinetics/Kinetics.h	0.00%	2 Missing ⚠️
src/thermo/PlasmaPhase.cpp	96.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1869      +/-   ##
==========================================
- Coverage   74.80%   74.36%   -0.44%     
==========================================
  Files         387      443      +56     
  Lines       53938    55435    +1497     
  Branches     9105     9108       +3     
==========================================
+ Hits        40346    41226     +880     
- Misses      10503    11110     +607     
- Partials     3089     3099      +10     

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