minizip for iOS

Very much work-in-progress.

The minizip folder contains the files to use, of which

miniunz.c
minizip.mm
minizip.pc.in

are only for later reference, but are not used. Add the others to your project, then use like this:

NSDirectoryEnumerator *enumerator; // Assume we have this
NSURL *outputFileURL; // Assume we have this, too

NSError *error = nil;
BOMiniZipArchiver *archiver = [[BOMiniZipArchiver alloc] initWithFileURL:outputFileURL append:NO error:&error];
NSAssert(archiver != nil, @"%@", error);

for (NSURL *fileURL in enumerator) {
    NSAssert([archiver appendFileAtURL:fileURL error:&error], @"%@", error);
}

NSAssert([archiver finishEncoding:&error], @"%@", error);