This class was created by realthunder during the `LinkMerge`,
in de66e563e0, to demonstrate how to use the `App::Link`
objects to create Link aware arrays.
It is used by `draftobject.array` (ortho, polar, circular)
and `draftobject.patharray` to create respective Link arrays.
This class is a bit mysterious. We need more documentation
on how the properties are being set, and how the code interacts
with the arrays that use it.
