Is there any appetite for an Iterators.cat function? I often use Iterators.flatten like this:
Iterators.flatten((itr1, itr2, itr3))
But it feels kind of silly to put the iterators in a tuple just so I can concatenate them. I think a more natural syntax would be
Iterators.cat(itr1, itr2, itr3)
where Iterators.cat is a Vararg function.