/// <summary>
/// hexagon neighbors in all directions, reporting distance from origin
/// </summary>
public static void KRingDistances(H3Index origin, int k, out List <H3Index> outCells, out List <int> distances)
{
var lookup = origin.KRingDistances(k);
outCells = lookup.Keys.ToList();
distances = lookup.Values.ToList();
}
