Add CloudCompare's progressive search

[dokempf]

As we want to reproduce CloudCompare's result for the default settings, we need to mimic its progressive cylinder search which truncates the cylinder length if enough points for statistics are found within a smaller cylinder already. The relevant CloudCompare code is this: https://github.com/CloudCompare/CloudCompare/blob/master/plugins/core/Standard/qM3C2/src/qM3C2Process.cpp#L224-L245