Plguins not sign *.xctest #42

class ALTApplication:

if (![fileURL.pathExtension.lowercaseString isEqualToString:@"appex"])
{
continue;
}

It only sign the *.appex, may *.xctest" should sign.
Like this:

if (![@[@"appex", @"xctest"] containsObject:fileURL.pathExtension.lowercaseString])
{
continue;
}