Modified findFolderOfFileInZip to use a breadth-first search and support
searching for multiple file names in one pass. This should prevent or at
least make it less likely to hang while importing certain packs.
Signed-off-by: Lenny McLennington <lenny@sneed.church>
Let's move off our custom QuaZip. In the olden times we needed the
custom version of QuaZip, as it was basically unmaintained and on
SourceForge (eww). But nowadays it's maintained and on GitHub. See
new GitHub page: https://github.com/stachenov/quazip
