Mixed number list operations (like intersection)

[jexp]

@conker84 something interesting about the "intersection" in general is that there might be lists of mixed numbers. like doubles and longs and then folks might expect cypher semantics of 1.0 == 1.

But we should cover that in a separate issue I think.

Where we could have an separate method or means, e.g. by converting a list of numbers into a list of doubles or longs and then doing the intersection.

There is also the option of having a more lenient comparator which uses the default comparator as long as both values are the same type and the double comparator when it's mixed types.

[vga91]

With the new versions of Cypher is no longer needed.
For example, executing the following 2 queries, the result is [2,3] for both of them

RETURN apoc.coll.intersection([1,2,3],[3,2]) AS value;  // with 2 and 2 values

RETURN apoc.coll.intersection([1,2,3],[3,2.0]) AS value; // with 2 and 2.0 values