Pytorch-ie

* Document type casting for Dataset (200) ArneBinder

:beetle: Fixes

* fix iter document (197) ArneBinder
* adjust test with conll2003 (198) ArneBinder

:books: Documentation

* readme: explain how to create your own PIE dataset loading script (196) ArneBinder

* fast_dev_run parameter for pipeline (192) ArneBinder
* implement BaseAnnotationList.extend (193) ArneBinder
* serialize predictions (178) ArneBinder

* Readme update (190) ChristophAlt
* Fix config_name passed twice to load_dataset_builder (185) ChristophAlt
* Add Github action to automatically upload datasets to HF hub (177) ChristophAlt

* implement test_step for TransformerSpanClassificationModel and refactor (175) ArneBinder

* dont export core and fix readme examples (173) ArneBinder

* reoarganize pytorch_ie.core (166) ArneBinder
* add nox sessions: tests_no_local_datasets and tests_only_local_datasets (170) ArneBinder
* use Auto classes in readme (165) ArneBinder
* Fix dummy data folder name for NL dataset (168) ChristophAlt
* Add AutoTaskModule, AutoModel, AutoPipeline (157) ChristophAlt
* NER datasets (162) ChristophAlt