bug_fix_aet rootzone

[ajkhattak]

The PR fixes bugs when using the AET Root Zone option. Currently, the rootzone block in the et_from_soil (in cfe.c) does not execute as aet_rootzone flag is always OFF. Other minor name changes..

Additions

• None

Removals

• None

Changes

• name changes: sft_coupled to is_sft_coupled and aet_rootzone to is_aet_rootzone, also names with root_zone changed to rootzone (no underscore) for consistency

Testing

1. tested the code to make sure the aet_rootzone option is used correctly

Notes

• This bug was found while reviewing PR 104

Checklist

• PR has an informative and human-readable title
• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Passes all existing automated tests
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Reviewers requested with the Reviewers tool ➡️

[madMatchstick]

@ajkhattak - For good measure, I bounced these changes against sft & smp coupling as outlined in the sft install.md. ngen build/run was successful, although I didn't look into output/results much.

Note - there were some minor adjustments to the linked sft readme needed. Namely,

1. adding the -DNGEN_IS_MAIN_PROJECT=ON flag to the noah-owp-modular lib build
2. some pathing updates within realization_<*>.json & at runtime

I will make these changes directly in a sft pr but wanted to mention them here, as testing was apart of this review.

This cfe pr #105 is okay to merge. Thanks!

[ajkhattak]

@madMatchstick thanks Jess for reviewing and testing with SFT and SMP, please submit a PR with your updates to SFT doc.