Add Python package ncio

[mcuntz]

Checklist

• [x] Title of this PR is meaningful: e.g. "Adding my_nifty_package", not "updated meta.yaml".
• [x] License file is packaged (see here for an example).
• [x] Source is from official source.
• [x] Package does not vendor other packages. (If a package uses the source of another package, they should be separate packages or the licenses of all packages need to be packaged).
• [ ] If static libraries are linked in, the license of the static library is packaged.
• [x] Package does not ship static libraries. If static libraries are needed, follow CFEP-18.
• [x] Build number is 0.
• [x] A tarball (url) rather than a repo (e.g. git_url) is used in your recipe (see here for more details).
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[github-actions[bot]]

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

I Failed to even lint the recipe, probably because of a conda-smithy bug :cry:. This likely indicates a problem in your meta.yaml, though. To get a traceback to help figure out what's going on, install conda-smithy and run conda smithy recipe-lint --conda-forge . from the recipe directory.

[github-actions[bot]]

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/ncio/meta.yaml) and found it was in an excellent condition.

[mcuntz]

@conda-forge/help-python , ready for review!