Fix issue 99

[SarahAlidoost]

Description

closes #99

Checklist

• [x] Add a reference to related issues.
• [x] @mentions of the person or team responsible for reviewing proposed changes.
• [x] This pull request has a descriptive title.
• [x] Code is written according to the guidelines.
• [x] The checks by MISS_HIT style checker and linter, below the pull request, are successful (green).
• [x] Documentation is available.
• [x] Add changes to the changelog file under section Unreleased.
• [x] Model runs successfully.
• [x] Ask a meinatainer to re-generate exe file if matlab codes are changed. About how to create an exe file, see exe readme.

This PR generates the same results as the main branch. Note that dryair.solveDryAirEquations runs only if Soilairefc == 1. However, the current value of Soilairefc is 0, see getModelSettings.m. Therefore, this part of the code hasn't been tested before, see #196. I fixed the bugs and now when Soilairefc==1 model runs and the refactored parts generate the same results as the old codes.

[SarahAlidoost]

Looks very good! No comments from me 😄

Did you run the branch-comparison notebook already for these changes? Or should I do that.

Thanks, yes I did it.