Add KLUE dataset (#2416)

* add klue

* apply make style

* apply flake8

* update README.md

* update README

* fix task_ids, source_datasets

* fix category

Co-authored-by: Minho Ryu <[email protected]>

* fix head feature

Co-authored-by: Minho Ryu <[email protected]>

* fix index feature

Co-authored-by: Minho Ryu <[email protected]>

* delete unnecessary features

Co-authored-by: Minho Ryu <[email protected]>

* delete unnecessary features

Co-authored-by: Minho Ryu <[email protected]>

* fix ynat features

* fix generate examples

* update readme, info, dummy data

* make style

* fix mrc

Co-authored-by: Minho Ryu <[email protected]>

* fix mrc yield

Co-authored-by: Minho Ryu <[email protected]>

* fix mrc unique id

* update readme and fix dummy data & infos

* fix guid to id_

Co-authored-by: Minho Ryu <[email protected]>

* update dp

Co-authored-by: Quentin Lhoest <[email protected]>

* update script, readme and dummy dataset

* fix ner features

* fix dummy dataset smaller

Co-authored-by: Minho Ryu <[email protected]>
Co-authored-by: Quentin Lhoest <[email protected]>

Author: 3 people