Fix opening 7z files created by apache commons compress#74

Open

cielavenir wants to merge 3 commits intofancycode:masterfrom cielavenir:fixcommons

+7-3

Commits on Aug 12, 2020

fixed reading packed stream crc, fixing 7z reading written by apache commons compress
cielavenir
committed
substreamsinfo crc might not be provided
cielavenir
committed

Commits on Aug 13, 2020

Fix _read64Bit when leading byte is 0xff
cielavenir
committed