* pySim/transport: add abstract get_atr method to LinkBase
* ATR: align get_atr() return value type
* ATR: use lowercase hex strings without spaces as ATR constants
* pySim.tlv: Separate {to,from}_val_dict() from {to,from}_dict()
* pySim.commands: Don't convert SwMatchError to ValueError
* pySim.runtime: Be more verbose if incompatible method is called
* pySim.tlv: Add convenience methods to IE class
* pySim.esim.saip: Decode each 'File' element in ProfileElement
* pySim.esim.saip: Add OID comparison functions
* setup.py: add missing comma in list of dependencies
* pySim-shell: Use poutput_json() whenever applicable
* extend JSONEncoder to serialze 'bytes' style objects as hex strings
* shell: Add 'apdu_trace' settable parameter for hex-dumping APDUs
* transport: Pass arbitrary kwargs to base-class constructor
* transport: Make all calls go through base class send_apdu_raw()
* Fix various mistakes around the CardADF <-> CardApplication dualism
* filesystem: fix various issues found by mypy
* filesystem: Avoid GPL header showing up in sphinx autodoc
* Use sphinx for generating documentation
* Add more documentation to the classes/methods
