staging location of WE2E data on tier 1 platforms

[jwolff-ncar]

Update paths in run_experiments.sh to point to data in the group space rather than personal directories.

For example, consider changing:
extrn_mdl_source_basedir="/scratch2/BMC/det/Gerard.Ketefian/UFS_CAM/staged_extrn_mdl_files"
to
extrn_mdl_source_basedir="/scratch2/BMC/det/UFS_SRW_app/v1p0/model_data"

This will require ensuring all necessary data is copied to the group space.

This is not time sensitive (i.e., not required for the release) but wanted to mention it as a way to consolidate where files live.

[jwolff-ncar]

It will be helpful to have a list of staged data locations on the tier 1 platforms listed in the Chapter 9 of the SRW App Users Guide (https://ufs-srweather-app.readthedocs.io/en/latest/WE2Etests.html). We need to be sure they are not in personal directories.

[jwolff-ncar]

@JulieSchramm Would you be willing to help with documenting where these are now so we can identify what needs to be moved to a group space? We do have the GST data in a group space so we can likely use that same template for the WE2E tests dates we need as well. (And we may be able to consolidate those dates to a few to keep down on the number of files we need.)

[mkavulich]

Superseded by #231