Add scotch library to WCOSS2 module files

[JessicaMeixner-NOAA]

Description

Dogwood and Cactus now have the scotch library installed. The SCOTCH library needs to be added to the module file and scotch tests can be turned on.

Solution

Add the following to wcoss2 module file:

 prepend_path("MODULEPATH", "/apps/prod/lmodules/INTEL_cray_mpich/19.1.3.304/cray-mpich/8.1.9")
scotch_ver=os.getenv("scotch_ver") or "7.0.3"
load(pathJoin("scotch",scotch_ver))

Alternatives

If there's another scotch module on wcoss2 that's preferred to be used.

Related to

n/a

[JessicaMeixner-NOAA]

WW3 input files are needed to be added to the official space for the unstructured grid tests to be turned on. Thanks @DeniseWorthen for mentioning to check this.

[JessicaMeixner-NOAA]

Once copying over data from hera for the WW3 input data, the pdlib tests on dogwood succeeded in creating and replicating a baseline. My branch is here: https://github.com/JessicaMeixner-NOAA/ufs-weather-model/tree/scotchwcoss2
I'll test on cactus after the switch out of an abundance of caution and since it's tomorrow.