Pyscard

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* Add .reconnect() method to high-level API
* Handle removal of the last reader on Windows
* Fix support of macOS Big Sur
* Use Python3 by default
* Handle bogus ACS ACR122U PICC reader

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* SCardStatus(): Fix a crash in case of PC/SC error
* toASCIIString(): replace non-ASCII char by '.'
* remove i386 (32-bits) support on macOS

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* Makefile: use twine to upload to pypi.python.org
* test: fix Exception test on 32-bits CPU
* test: correctly handle macOS versions older than 10.10

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* SmartcardException: store the PC/SC return code in hresult
* CardMonitoring: stop the looping only if PCSC exited
* setup: support build on OpenBSD, and other BSD
* Fix Windows 10 SCARD_E_SERVICE_STOPPED from SCardListReaders()
* Minor documentation improvements

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* Modify CardMonitoring's deleteObserver method to cleanly remove threads
* Python 3: fix smartcard/Synchronization.py
* Python 3: Fix SCardGetErrorMessage() on Windows
* PCSCPart10: add parseFeatureRequest(), parseTlvProperties()
* Fix PEP8 warnings
* Minor documentation improvements

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* include test/__init__.py in the archive tarball.
"make test" now works. That fixes build using Python 3.6