Update FVCOM preparation script for WCOSS2

[BenjaminBlake-NOAA]

DESCRIPTION OF CHANGES:

• The filenames for the operational GLOFS which is used for the FVCOM processing have changed on WCOSS2. Here is an example:
  nos.leofs.fields.f${fhr}.${PDYf}.t${cycf}z.nc -> leofs.t${cycf}z.${PDYf}.fields.f${fhr}.nc
• The ush/fvcom_prep.sh is updated accordingly. These filename changes were tested successfully with the real-time parallel on WCOSS2 - the ncap2/netcdf issue is unrelated to these changes. I wanted to get these local changes submitted now so that they aren't forgotten about because we do want to switch to using the operational GLOFS data once the module/library issue is fixed.

TESTS CONDUCTED:

Tested successfully in the real-time parallel on WCOSS2.

Machines/Platforms:

• WCOSS2
  • Cactus/Dogwood
  • Acorn
• RDHPCS
  • Hera
  • Jet
  • Orion
  • Hercules

Test cases:

• Engineering tests
  • Non-DA engineering test
  • DA engineering test
    • Retro
    • Ensemble
    • Parallel
• RRFS fire weather
• RRFS_A:
• RRFS_B:
• RTMA:
• Others:

ISSUE:

• Continues work on issue Some local changes need to get into workflow, and some dev-sci need to get into main #554

[MatthewPyle-NOAA]

Thanks for folding this one in....