Add Zip::any

[nilgoyette]

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I find it strange that ndarray offers Zip::all but not Zip::any. Of course we can replace this function with normal iteration tools from std and itertools, but Zip is the by far fastest horse around.

I checked with Python and C++ for the Returns false if the input arrays are empty behavior.

[bluss]

any(p) is the same as !all(!p) and I've previously been against bloating the list of adaptors here, but it seems fine.

[bluss]

Thanks!