:tada: New Dataset
* add conll2003 dataset (14) ArneBinder
:rocket: Features
* implement `TextSpanTrimmer` (20) ArneBinder
* implement `RegexPartitioner` (19) ArneBinder
:beetle: Fixes
* add "Document Converters" section to conll2003 dataset card (17) ArneBinder
* fix importing all modules in conftest.py (16) ArneBinder
* fix coverage score (and report) for unused source files (11) ArneBinder
* fix codecov upload (8) ArneBinder
:rotating_light: Testing
* codecov ci: set target to 90% for the patch job (25) ArneBinder
* add codecov threshold (24) ArneBinder
* add `codecov.yml` to set target coverage to 90% (23) ArneBinder
:construction_worker: Continuous Integration
* codecov ci: set target to 90% for the patch job (25) ArneBinder
* add codecov threshold (24) ArneBinder
* add `codecov.yml` to set target coverage to 90% (23) ArneBinder