* docs/saip-tool: fix ERROR: Unexpected indentation
* filesystem: fix WARNING: Block quote ends without a blank line
* doc/card-key-provider: fix WARNING: Title underline too short
* 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.esim.saip.oid: Fix OID defininitions for v3.3.1 IoT templates
* pySim.filesystem: Add __len__ method to Path object
* pySim.esim.saip.templates: Update to SAIP v3.3.1 (July 2023)
* pySim.esim.saip.templates: Add a notion of the path of a file
* pySim.esim.saip.template: Permit file-size for BER-TLV files
* pySim.esim.saip: Add subcasses for EAP, DF.SNPN and DF.5G_ProSe
* pySim-shell: Support other ADMx values beyond ADM1 from 'verify_adm'
* commands: Add method to select parent DF ("cd ..")
* cosmetic: Remove extraneous empty lines between spec-section-comment and class
* USIM + ISIM: Specify the services associated with each file
* filesystem: Maintain a 'service' attribute for all files on a card
* pySim-shell: introduce 'apdu' command for sending raw APDU to card
* pySim-shell: export: allow export as JSON instead of hex
* ts_31_102: TLV._tlv must point to the class, not an instance
* filesystem: Fix TLV decode/encode
* Better decode of EF.UST, EF.EST and EF.IST
* utils.py: Fix some tuple type annotations
* utils.py: type annotations for DataObject related methods
* 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