remove libarchive, use unarr instead
unarr: fix x64 compilation warnings
unarr: use zlib's crc32 when available
unarr: fix typo
unarr: use 64-bit file offsets
unarr: expose file modification time
unarr: start working on ZIP support
unarr: append format to filenames
unarr: clean up main directory
unarr: support Deflate, Deflate64, BZIP2 and LZMA for ZIP archives
fix x64 compilation
use unarr instead of miniunzip
XPS: improve ZIP64 spec adherence
unarr: warn about missing Deflate64 support, expose filetime instead of dosdate
unarr: support a custom memory allocator
unarr: support PPMd for ZIP archives
unarr: don't reject huge BZIP2 streams
unarr: process PPMd EOS marker
unarr: make tester return number of extraction failures as error code
unarr: fix RARVM memory initialization