Segmenter class (exposing strided-roll creation) #15

Create a Segmenter class, this class exposes (in a clean interface) the creation of strolls (from the StridedRolling class).

Such a class enables users to create efficiently strided rolls (strolls), opening the door towards integration with;

• deep learning packages (e.g., tsai, 1D or multi-dimensional convolutions)
• raw time-series packages (e.g., tslearn, sktime)