Implement 'all' in MongoDB::QueryResult::Filtered
Implement 'all' in MongoDB::QueryResult::Filtered

The prior optimization of 'all' skipped post-filtering. This
restores it by implementing a filtering 'all'.

dagolden/mongo-perl-driver,xdg/mongo-perl-driver,dagolden/mongo-perl-driver,dagolden/mongo-perl-driver,xdg/mongo-perl-driver,rahuldhodapkar/mongo-perl-driver,dagolden/mongo-perl-driver,mongodb/mongo-perl-driver,rahuldhodapkar/mongo-perl-driver,rahuldhodapkar/mongo-perl-driver,mongodb/mongo-perl-driver,xdg/mongo-perl-driver,rahuldhodapkar/mongo-perl-driver,mongodb/mongo-perl-driver