When this block is given, k-points are generated along a path
defined by the points of the list.
The points must be given in reduced coordinates.
The first row of the block is a set of integers defining
the number of k-points for each segments of the path.
The number of columns should be equal to Dimensions,
and the k-points coordinate should be zero in finite directions.
For example, the following input samples the BZ with 15 points: