* Updated STL type hints use support collections.abc
* Updated array_caster to match numpy/eigen typing.Annotated stlye
* Added support for Mapping, Set and Sequence derived from collections.abc.
* Fixed merge of typing.SupportsInt in new tests
* Integrated collections.abc checks into convertible check functions.
* Changed type hint of py::buffer to collections.abc.Buffer
* Changed convertible check function names
* Added comments to convertible check functions
* Removed checks for methods that are already required by the abstract base class
* Improved mapping caster test using more compact a1b2c3 variable
* Renamed and refactored sequence, mapping and set test classes to reuse implementation
* Added tests for mapping and set casters for noconvert mode
* Added tests for sequence caster for noconvert mode
Tim Ohliger
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