Mdtf-test-data

What's Changed
* Add areacella to cmip mon by wrongkindofdoctor in https://github.com/jkrasting/mdtf_test_data/pull/27


**Full Changelog**: https://github.com/jkrasting/mdtf_test_data/compare/v1.0.6...v1.0.7

What's Changed
* add tas to config/cmip_mon.yml by wrongkindofdoctor in https://github.com/jkrasting/mdtf_test_data/pull/26


**Full Changelog**: https://github.com/jkrasting/mdtf_test_data/compare/v1.0.5...v1.0.6

- CMIP-convention vertical coordinate
- Additional variable definitions

- Updates/additions to ocean variables list

- Fixes issue with CMIP convention data

- Adds support for ocean tripolar synthetic data
- Enhanced unit testing