TextConfig: added "errors"
_The documentation is not available anymore as the PR was closed or merged._ Thanks for adding this ! You can fix the CI by formatting your code using the `make style` command :) [**@lhoestq**](https://github.com/lhoestq) commented on [Oct 27, 2022, 4:08 PM GMT+3:30](https://github.com/huggingface/datasets/pull/5155#issuecomment-1293464680 "2022-10-27T12:38:04Z - Replied by Github Reply Comments"):
> Thanks for adding this ! You can fix the CI by formatting your code using the `make  style` command :)

I ran this and force pushed the changes.
This patch adds the ability to set the `errors` option of `open` for loading text datasets. I needed it because some data I had scraped had bad bytes in it, so I needed `errors='ignore'`. 