Implementation of 'ReactorEdge' class

[gkogekar]

Changes proposed in this pull request

• Implementation of the 'ReactorEdge' class for modeling edges in the reactor
• Modification to the reactor governing equations to include production rates due to edges
• A simple example demonstrating the usage of 'ReactorEdge' class.

If applicable, fill in the issue number this pull request is fixing

Closes Cantera/enhancements#203

If applicable, provide an example illustrating new features this pull request is introducing

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[bot]]

Codecov Report

Attention: Patch coverage is 5.49451% with 86 lines in your changes are missing coverage. Please review.

Project coverage is 75.59%. Comparing base (d37a76b) to head (1b5cb69).

Files	Patch %	Lines
src/zeroD/ReactorEdge.cpp	0.00%	30 Missing :warning:
src/clib/ctreactor.cpp	0.00%	29 Missing :warning:
interfaces/cython/cantera/reactor.pyx	19.04%	17 Missing :warning:
src/zeroD/ReactorBase.cpp	0.00%	6 Missing :warning:
include/cantera/zeroD/ReactorBase.h	0.00%	2 Missing :warning:
include/cantera/zeroD/ReactorEdge.h	0.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1697 +/- ## ========================================== - Coverage 75.69% 75.59% -0.11% ========================================== Files 443 445 +2 Lines 60975 61066 +91 Branches 9551 9554 +3 ========================================== + Hits 46158 46163 +5 - Misses 11786 11872 +86 Partials 3031 3031 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.