- update the build scripts for fv3nc2nemsio, regrid_nemsio, and
tropcy_NEMS to set corrected LIBS and NETCDF_LDFLAGS flags

Refs: NOAA-EMC#665

- update the LIBS setting in enkf_chgres_recenter_nc.fd/makefile
- replace COMP value of "ftn" with "$(FC)" to accept overrides
for different compilers on different platforms
- FC will be set via myFC at upper level

Refs: NOAA-EMC#665

- no longer needed, now called libpng

Refs: NOAA-EMC#665

- remove now-unneeded symlinks in link_fv3gfs.sh for nemsio_chgdate.fd,
nemsio_get.fd, and nemsio_read.fd

Refs: NOAA-EMC#665

- only checkout the GFS WAFS package when building the package for operations

Refs: NOAA-EMC#665

- change MODULEPATH to /apps/contrib/NCEP/libs/hpc-stack-gfsv16/modulefiles/stack in modulefiles
- remove libjpeg, bufr_dump, and util_shared from module_base.orion.lua;
won't be available outside of production or aren't needed on Orion

Refs: NOAA-EMC#665

- add new obsproc/prepobs version variables
- update hpc_ver to 1.2.0
- add override versions for modules that differ on Orion compared to WCOSS2:
gempak_ver, python_ver, wrf_io_ver, esmf_ver, nco_ver

Refs: NOAA-EMC#665

- change MODULEPATH to /scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack-gfsv16/modulefiles/stack
- remove png module load in modulefile.storm_reloc_v6.0.0.hera.lua; now libpng
- change python to anaconda module in module_base.hera.lua
- remove unavailable or unneeded module loads in module_base.hera.lua:
perl, libjpeg, bufr_dump, util_shared
- add anaconda_ver=anaconda3-5.3.1 to hera.ver

Refs: NOAA-EMC#665

- add new obsproc/prepobs run versions
- update hpc_ver to 1.2.0
- add needed overrides for module versions that differ on Hera compared
to WCOSS2: cmake_ver, esmf_ver, nco_ver, gempak_ver, wrf_io_ver

Refs: NOAA-EMC#665

- update GSI tag to gfsda.v16.2.0.1
- update UPP tag to upp_v8.1.1

Refs: NOAA-EMC#665

- update ufs-weather-model checkout to GFS.v16.2.1 tag
- update UFS_UTILS checkout to ops-gfsv16.2.1 tag
- add "--init" with GSI submodule command to correct libsrc checkout

Refs: NOAA-EMC#665

- set WW3=Y on WCOSS2 and WW3=N on Hera/Orion
- will not be supporting waves on Hera/Orion for this version of
GFS.v16.2 due to need to update WW3 code
- will remove machine check for v16.3 upgrade and return to WW3=Y

Refs: NOAA-EMC#665

Refs: NOAA-EMC#665