Add testing of the CMIP7 and CMOR workflow

[ekluzek]

As part of getting ready for CMIP7 experiments, we will need to start testing the workflow for it. This means testing running the cmip7 workflow with CMORization, time-series output, and CUPiD.

Note, that the ability run the CMOR output is something that's desired to be in place not only for CMIP7 but afterwards as a tool to use for ongoing model development. So there should be at least one separate test for running this on it's own.

[ekluzek]

There is now a spreadsheet that lists the CMIP7 variables needed for land. I don't see the list of variable names though...

https://docs.google.com/spreadsheets/d/1HSVdriM77dCkrtUFW1kUs9YNTF8sW9n-wdtDNKkC-oM/edit?gid=176345420#gid=176345420

[ekluzek]

The plan now is to have the list of history fields (the hist_fincl* namelists) in the CMIP7 workflow. So it'll be part of ccs_config. I'm not quite clear how that will work though.