Better integration of BIG-bench
### Feature request

Ideally, it would be nice to have a maintained PyPI package for `bigbench`.

### Motivation

We'd like to allow anyone to access, explore and use any task.

### Your contribution

@lhoestq has opened an issue in their repo:
- https://github.com/google/BIG-bench/issues/906
Hi, I made my version : https://huggingface.co/datasets/tasksource/bigbench