* Added script to check/sync versions using CHANGELOG.md as a source of truth.
* Script currently only syncs __version__.py but can easily be extended to cover other files by adding the files to an array in the script.
* Also updated sphinx conf.py to get version dynamically from __version__.py
* added types for label studio annotations
* added method to cast as dicts
* added length check for annotations
* tweaks to get upload to work
* added validation for label types
* annotations is a list for each example
* little bit of refactoring
* test for staging with label studio
* tests for error conditions and reviewers
* added test for NER annotations
* updated changelog and bumped version
* added docs with annotation examples
* fix label studio link
* bump version in sphinx docs
* fulle -> full (typo fix)
