0.0.2
-------------------
Changes:
* Utils moved to `toloka_prefect.utils`
* Toloka tasks modev to `toloka_prefect.operations`
* Non-Toloka (`download_*`) tasks moved to `toloka_prefect.helpers`
* Docstrings are updated to meet Prefect standards

Features:
* TolokaAuth object was removed
* Default toloka_client is now created from "TOLOKA_TOKEN" Prefect secret


0.0.1
-------------------
* Initial release
