Holly Mandel

support for additional scipy nd interpolants

5

- [x] Closes #7704 - [x] Adds support for n dimensional tensor product interpolants `slinear`, `cubic`, `quintic`, and `pchip`. - [x] Updates documentation of DataArray/Dataset.interp and DataArray/Dataset.interp_like to reflect updates...

core.missing typing

4

I have not finished the following yet. I am posting this as a draft PR to solicit feedback about typing philosophy/style, in particular about the balance between permissive typing (Union[...])...