diag_manager regional output test

[thomas-robinson]

Is your feature request related to a problem? Please describe. There is currently no test in FMS to test the diag_manager with regional output.

Describe the solution you'd like test_diag_manager.F90 should get another test added to it that runs with a regional diagnostic output, and a new diag_table needs to be created

Describe alternatives you've considered The test could be written to a new file

Additional context

[thomas-robinson]

See #281 for an example diag_table entry for regional output. I think the send_data and register_diag_field calls are the same for global and regional output. It's just how the internal diag_manager handles the output is different.

[thomas-robinson]

@colingladueNOAA have you worked on this at all?

[colingladueNOAA]

I have not. I can start if you'd like.

[thomas-robinson]

@ngs333 is starting to work on it I think, so it's alright. I just don't want you guys to both do the same thing.

[uramirez8707]

Fixed in #1505 https://github.com/NOAA-GFDL/FMS/blob/main/test_fms/diag_manager/test_subregional.sh