[Feature]: Make "mpas mesh" (restart-file) a separate command-line parameter

[TonyB9000]

Is your feature request related to a problem?

Distantly related to a problem with "error recreation", the e2c MPAS jobs involve an "input directory" of .nc files, and expect the same directory to have an associated restart file for the mesh information. In practice, these are kept in separate directories. Thus, "recreate a problem" either requires copying the restart file to the "model-output" directory, or else creating a synthetic input directory with links to both.

Describe the solution you'd like

Add "--mpas-mesh <suitable_restart_file> to command line, and stop requiring it to be co-located with the data files being processed.

Describe alternatives you've considered

Creating a synthetic input directory with links to both the data files and the restart file, required of anyone who needs to verify a problem involving mpas cmorizing.

Additional context

No response