feat: implement fine control of variable compatibility#306
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Extracted from #513 (and applied to integration tests). This PR would allow ecmwf/anemoi-transform#306 to be merged without requiring anemoi-inference to update its anemoi-transform dependency. (And so #513 can be reviewed independently).
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Description
When combining data, anemoi will check that variables are compatible, i.e.,
that they have the same units, the same time processing (e.g. whether the data is instantaneous or accumulated),
the same time processing period (e.g. whether the data are 3-hourly or 6-hourly accumulations),
the same type of level (e.g. whether the data are on pressure levels or model levels), etc.
This PR implement the code to turn off some of the checks.
Related PRs:
What problem does this change solve?
What issue or task does this change relate to?
Additional notes
As a contributor to the Anemoi framework, please ensure that your changes include unit tests, updates to any affected dependencies and documentation, and have been tested in a parallel setting (i.e., with multiple GPUs). As a reviewer, you are also responsible for verifying these aspects and requesting changes if they are not adequately addressed. For guidelines about those please refer to https://anemoi.readthedocs.io/en/latest/
By opening this pull request, I affirm that all authors agree to the Contributor License Agreement.