Partridge

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Code changes:

* Remove references to deprecated NumPy types (https://github.com/remix/partridge/pull/69 - thanks BlackSpade741!)
* Switch from `cChardet <https://github.com/PyYoshi/cChardet>`_ to `charset-normalizer <https://github.com/Ousret/charset_normalizer>`_ for Python 3.10 support (https://github.com/remix/partridge/pull/76 - thanks brockhaywood!)

Other changes:

* Miscellaneous improvements to tests, code formatting, and documentation (https://github.com/remix/partridge/pull/61 - thanks invisiblefunnel!)
* Relocate usage examples from wiki to README (https://github.com/remix/partridge/pull/70 - thanks landonreed!)
* README tweaks (https://github.com/remix/partridge/pull/74 - thanks chelsey!)
* Use GitHub Actions for automated testing (https://github.com/remix/partridge/pull/79 - thanks dget!). **Note:** we now test against Python versions 3.8, 3.9, 3.10, and 3.11.

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* Improve file encoding sniffer, which was misidentifying some Finnish/emoji unicode. Thanks to dyakovlev!

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* Add ``partridge.load_geo_feed`` for reading stops and shapes into GeoPandas GeoDataFrames.

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This release is a combination of major internal refactorings and some minor interface changes. Overall, you should expect your upgrade from pre-1.0 versions to be relatively painless. A big thank you to genhernandez and csb19815 for their valuable design feedback. If you still need Python 2 support, please continue using version 0.11.0.

Here is a list of interface changes:

* The class ``partridge.gtfs.feed`` has been renamed to ``partridge.gtfs.Feed``.
* The public interface for instantiating feeds is ``partridge.load_feed``. This function replaces the previously undocumented function ``partridge.get_filtered_feed``.
* A new function has been added for identifying the busiest week in a feed: ``partridge.read_busiest_date``
* The public function ``partridge.get_representative_feed`` has been removed in favor of using ``partridge.read_busiest_date`` directly.
* The public function ``partridge.writers.extract_feed`` is now available via the top level module: ``partridge.extract_feed``.

Miscellaneous minor changes:

* Character encoding detection is now done by the ``cchardet`` package instead of ``chardet``. ``cchardet`` is faster, but may not always return the same result as ``chardet``.
* Zip files are unpacked into a temporary directory instead of reading directly from the zip. These temporary directories are cleaned up when the feed is garbage collected or when the process exits.
* The code base is now annotated with type hints and the build runs ``mypy`` to verify the types.
* DataFrames are cached in a dictionary instead of the ``functools.lru_cache`` decorator.
* The ``partridge.extract_feed`` function now writes files concurrently to improve performance.

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* Fix major performance issue related to encoding detection. Thank you to cjer for reporting the issue and advising on a solution.

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* Improved handling of non-standard compliant file encodings
* Only require functools32 for Python < 3
* ``ptg.parsers.parse_date`` no longer accepts dates, only strings