schema edits for MDTF interoperability

[aradhakrishnanGFDL]

Following this NOAA-GFDL/MDTF-diagnostics#588, this issue tracks the following changes to the schema

Change: modeling_realm to realm (GFDL Catalog Builder)
Change: temporal_subset to time_range (GFDL Catalog Builder)
Add: standard_name (GFDL Catalog Builder)

[ceblanton]

This is already fixed, isn't it?

https://github.com/NOAA-GFDL/CatalogBuilder/blob/main/catalogbuilder/cats/gfdl_template.json

[aradhakrishnanGFDL]

This is already fixed, isn't it?

https://github.com/NOAA-GFDL/CatalogBuilder/blob/main/catalogbuilder/cats/gfdl_template.json

Yes, but just the json seemed to updated. We need sample config yaml files and the test configs in CI also to be updated which is now done.

[aradhakrishnanGFDL]

standard_name addition is pending. @Ciheim this PR will add an empty column that you will fill in your feature addition, or want your PR to take care of that as well?