Update S0 and S1 land use paths to versions 19 and 20

[aber-sandag]

Proposed changes

Update GUI to use S0 version 19 and S1 version 20 land use

Impact

Use most up to date land use

Types of changes

What types of changes does your code introduce to ABM? Put an x in the boxes that apply

• [x] Bugfix (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 not work as expected)
• [ ] Documentation Update (if none of the other choices apply)

How has this been tested?

Please describe the tests that you ran to verify your changes.

• [ ] Set up previous 2035 no-build scenario using this

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings

Further comments

S2 and S3 land use are not updated