Add NWM setup support for SCHISM

[SorooshMani-NOAA]

• Added NWM support
• Added additional test mesh for Shinnecock inlet that includes floodplain
• Added NWM basic setup test

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 91.37931% with 5 lines in your changes missing coverage. Please review.

Project coverage is 64.82%. Comparing base (2656ca7) to head (065a391). Report is 87 commits behind head on main.

Files	Patch %	Lines
coupledmodeldriver/configure/forcings/base.py	91.17%	3 Missing :warning:
coupledmodeldriver/generate/schism/base.py	50.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #143 +/- ## ========================================== + Coverage 64.39% 64.82% +0.42% ========================================== Files 35 35 Lines 3806 3863 +57 ========================================== + Hits 2451 2504 +53 - Misses 1355 1359 +4 ```

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