Add end users to `hydro` geodatabase

[mmannion]

• Manually added HQ\Esri Service group with db_datareader in sql-gis, for today

  • Allows @mripp to create new Pro project for service publishing, without using HQ\arcgis account

• Added same to create_database_hydro.sql, but haven't committed yet

  • Want to think/talk about end user access to this database before pushing an update