GitLab

* 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

* Support bigbench-hard json tasks using multiple_choice_grade

* Add support for greedy decoding in bigbench tasks

* move bigbench_resources to datasets

* rectify changes to rf.greedy_until w upstream

* make path to resource import reflect new location

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Co-authored-by: haileyschoelkopf <hailey.schoelkopf@yale.edu>