VERY IMPORTANT: Update CMake and corrected bug

[arango]

• Updated CMake flags for GNU (Compilers/compiler_flags_GNU_Fortran.cmake) and Intel (Compilers/compiler_flags_Intel_Fortran.cmake) compilers.

• Update the information in Compilers/roms_compiler_flags.cmake to ROMS BUILD TYPE, ROMS COMPILER FLAGS, and internal macro my_fflags.

• Corrected bug ESM/coupling_esmf.yaml, ESM/coupling_esmf_coamps.yaml, and ESM/coupling_esmf_wrf.yaml. We need the extrapolation_method to have a value of nearest instead of none. By default, the ESMF/NUOPC library needs the specification of the regrid and extrapolation methods in all the import and export fields:

   - standard_name:       downward_shortwave_flux_at_sea_water_surface
      long_name:           surface downward shortwave radiation flux
      short_name:          dSWrad
      data_variables:      [dswrad, time]
      source_units:        W m-2
      destination_units:   W m-2
      source_grid:         cell_center
      destination_grid:    cell_center
      add_offset:          0.0d0
      scale:               1.0d0
      debug_write:         false
      connected_to:        *ATM                                   # swdown
      regrid_method:       bilinear
      extrapolate_method:  nearest
  

  Many thanks to Fernando Pareja for bringing this to my attention.