Add ECMWF cfgrib: open GRIB files with xarray

[alexamici]

Hi, this recipe adds the ability to work with the very popular GRIB file format in xarray on Linux, MacOS and Windows (with the next release).

The need for a conda package is due to the eccodes dependency.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/cfgrib) and found some lint.

Here's what I've got...

For recipes/cfgrib:

• Selectors are suggested to take a <two spaces>#<one space>[<expression>] form. See lines [45]

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/cfgrib) and found it was in an excellent condition.

[alexamici]

@conda-forge/core this PR should be ready and safe to merge. Failures are the known issue #7715.

[chrisburr]

Looks good, just a couple of suggestions.

[chrisburr]

@StephanSiemen Are you happy to be listed as maintainer of this recipe?

[alexamici]

I must say that I didn't explicitly ask him, but he is the head of the development section of ECMWF that commissioned to my company the development of cfgrib and we usually co-maintain all distribution channels.

[chrisburr]

It's standard for us to check that any additional maintainers are happy before merging new recipes (most of the time it's a formality, but occasionally people say no).

If you'd like it be merged faster you can remove this line and re-add him in the feedstock (which you can edit directly).

[StephanSiemen]

Hi, I am very happy to be added as a maintainer. Thanks @alexamici for the work!