forked from public/pysim
* move {enc,dec}_addr_tlv functions from pySim.util to pySim.legacy.util
* isim: Replace legacy imperative address TLV encoder/decoder with construct
* bertlv_parse_len: Fix input data is smaller than num length octets
* usim: Properly decode/encode IPv4 + IPv6 addresses
* usim: ePDGId + ePDGSelection: Fix encoder/decoder + add test cases
* usim: Add EF.ePDGSelection + EF.ePDGSelectionEm support
* USIM: add support for EG.ePDGIdEm (Emergency ePDG)