Add support for time, date, duration, and decimal dtypes
COLLABORATOR
Is there a dataset which uses these four datatypes for tests purposes?

2022-01-21T15:43:34Z
https://github.com/huggingface/datasets/pull/3591#issuecomment-1018625074
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COLLABORATOR
@severo Not yet. I'll let you know if that changes.
2022-01-31T18:29:33Z
https://github.com/huggingface/datasets/pull/3591#issuecomment-1026080935
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Add support for the pyarrow time (maps to `datetime.time` in python), date (maps to `datetime.time` in python), duration (maps to `datetime.timedelta` in python), and decimal (maps to `decimal.decimal` in python) dtypes. This should be helpful when writing scripts for time-series datasets. 