* euicc: Fix TLV IE definitions for SetNickname{Req,Resp}
* euicc: Fix encoding of Lc value in STORE DATA
* euicc: the ICCID TLV object uses bcd-swapped-nibble encoding
* 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