A way to build from an A and a Vector

[AlistairB]

Hi,

Would it make sense to add some equivalent of :| for NonEmpty but for NonEmptyVector? I suppose in this case it would need to be a function, not a data constructor. ie. something like consV :: a -> Vector a -> NonEmptyVector a.

I suppose an equivalent snocV might also be useful.

I'd be happy to open a PR if this is all desirable.

[emilypi]

Seems like a pretty unoffensive thing to ask for! I'd accept a PR for it 😄