Updated Hurricane Irene Test Case

[arango]

The GitHub ​https://github.com/myroms/roms_test is updated to include changes to the IRENE coupling application:

• The subdirectory IRENE/Coupling now includes two subdirectories:
  
  
  • data_wrf_roms: ESMF/NUOPC coupling with three components: DATA-WRF-ROMS using ROMS native coupling framework.
    
    
  • roms_data: ESMF/NUOPC coupling with two components: ROMS-DATA. It tests the native ROMS NUOPC cap modules for ROMS and DATA components.

• It also serves as an example to couple to the UFS using CDEPS/CMEPS. Thus, we may include other subdirectories in the future to show the interface to the UFS.

• Corrected the units attribute for variable Tair in IRENE/Data/FRC/Tair_narr_IRENE.nc. It needs to be Celsius instead of Kelvin.