Modify the RRFS v1 workflow configuration design architecture

[lgannoaa]

This issue is to provide a fix to address the following items:
(1) RRFS v1 workflow was designed to wire in environment variable that should have been calculated within the ex-scripts. See issue #394
(2) RRFS v1 workflow configuration mechanism was designed in a way that does not comply with the NCO implementation standard.

The workflow configuration architecture has been redesigned to use $HOMErrfs/parm/config location for the workflow configuration. There are four directories under the $HOMErrfs/parm/config indicated different RRFS Work Group Family (WGF) case. There is once configuration template file var_defns.sh.template for each WGF. Many hardwired environment parameter have been removed from the workflow top level into the appropriate ex-script level. Each job will use j-job to run the $HOMErrfs/ush/rrfs_nco_config.sh script to generate final configuration file under $DATA. The ex-script will source this configuration file to continue the process.

The scope of this issue impacts the entire RRFS v1 workflow. A test that combine with following github issue will be run for proceed with the associated PR:

• Modify the RRFS v1 workflow configuration design architecture

• Remove developer wire files in ecflow workflow

• Implement Unique Data, Umbrella Data, COMOUT, and remove the use of nwges

• Forecast RESTART capability