Placeholder issue: NWM data ingestion through CDEPS

[janahaddad]

Description

Create NWM Data mode for CDEPS in prep for future work to ingest NWM data in SCHISM coupling configurations

Notes

https://github.com/schism-dev/pyschism/blob/main/examples/NWM/gen_sourcesink.py

cc @uturuncoglu @danishyo @josephzhang8 @saeed-moghimi-noaa feel free to add notes here