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Fixes https://github.com/Lightning-AI/lit-gpt/issues/558
Fixes https://github.com/EleutherAI/lm-evaluation-harness/issues/901

Running `main.py` yields the following:

```
ImportError: This modeling file requires the following packages that were not found in your environment: einops. Run `pip install einops`
```

This commit should fix this.

Users can install this package in non-editable mode.
Because of the existence of the bigbench and the usage
of relative path, non-editable installation cant run.

* add anthropic support

* move requirement

* add xcopa dataset

* add xstory_cloze dataset and run pre-commit

* fix xcopa validation and test sets

* add xwinograd dataset

* add pawsx task

* add xnli task

* update task table with recently added tasks

* remove unused metrics from paws-x

* add mgsm task and fix gsm8k

* fix gsm8k until

* update task table

* Add 8 bit support

* added trust remote code

* Update main.py

* Update huggingface.py

* Update huggingface.py

* Fix bugs

* Fix PR #422 issues

* fix(style): remove empty newline

* fix(stlye,args): run `pre-commit` and re-order args for backward-compat

* fix(style): pre-commit the `README.md`

This reverts commit 5fe7e2c0, reversing
changes made to 14b8ec7e.