Python Array API Standard

Hi all,

A group of folks from various projects / companies have put together a draft of an Array API standard, and are looking for feedback.

- Blog post: https://data-apis.org/blog/array_api_standard_release
- Array API standard document: https://data-apis.github.io/array-api/latest/
- Repo: https://github.com/data-apis/array-api/

We have lots of experience working with Arrays, both as consumers of arrays implementing the NumPy API (cupy, sparse) and implementing the API ourselves. Our feedback on the proposed standard would be welcome in the GitHub repo linked above.

We can use this issue to discuss if and how `dask.array` should adopt this standard. The document gives some guidance at https://data-apis.github.io/array-api/latest/purpose_and_scope.html#how-to-adopt-this-api, but this is fairly uncertain territory.