- Update to version 2.2.0
* PCSCCardRequest:
- handle KeyboardInterrupt in waitforcard() & waitforcardevent()
- use a local PC/SC context to avoid locks
* smartcard.util.padd(): do NOT modify the input parameter
* CardMonitoring: a timeout exception IS expected
* Fix pydoctor documentation
* wx: fix module and examples
* Remove Python 2 conditional code
* Test and improve the synchronization code
* Test and update the `Observer.py` code
* Remove `ClassLoader.py`
* Migrate a `src/` layout
* Migrate test/* from unittest to pytest
* Add missing GSM 03.38 symbols for decoding
* Support only Python 3.9 and higher
* Remove the Python 2.x-only Pyro dependency
* Migrate CI to use the official Coveralls action
* Standardize local and CI testing to use tox
* Build wheels in CI for all supported Python versions
* Build the docs as a part of the test suite
* Begin to add type annotations to the package
* Deprecate the `HexListToBinString`, `BinStringToHexList`,
`hl2bs`, and `bs2hl` utility functions
* Support "64" as an ATR baud rate adjustment integer
(ISO 7816-3 2006)