set defaults for new ED2IN vars

[Aariq]

Description

Sets some arbitrary defaults for new variables in ED2IN file. These are required for the ED2IN file to be parsed, but I don't think they actually are used. The ED2IN template says "These variables are used to define the additional soil properties needed for SOIL_HYDRO_SCHEME=2." and in this ED2IN file I've set SOIL_HYDRO_SCHEME=0.

Defaults came from googling the description of the variable with the word "typical" and "soil".

Also fixes a mistake in #3035 that added new variables not in the ED2IN template after the $END tag.

Motivation and Context

Required variables for development version of ED2 to run.

Review Time Estimate

• [x] Immediately
• [ ] Within one week
• [ ] When possible

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Extremely unlikely to break anything, and I can't test if it works until the PR gets merged and the docker container gets built by GitHub actions.

Checklist:

• [ ] My change requires a change to the documentation.
• [x] My name is in the list of CITATION.cff
• [ ] I have updated the CHANGELOG.md.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[Aariq]

Installed on Welsh server and tested with development version of ED2. Both supplying the new template and supplying new tags with pecan.xml work.