Computing 3D scene from a permutations of a number string.
Based on the ideas from <https://github.com/Eidonko/Permutation-feed-povray>.

Example:
Starting with a string, for example 234142243.
We then consider all the permutations of the string, and for each permutation we divide the string into three substrings.
For example, for the identity permutation we get: 234, 142, 243.
Since 4 is the maximal number in the stream, we will be interpreting each substrings as integers base 5.
In our example we get numbers: 69, 47, 73.
We treat those three numbers as coordinates to put a cube at.
We also assign different light sources to the cubes, at random.

We also place some lights at various positions throughout the scene.


this is WORK IN PROGRESS
feature list:
- proper UI
- moving lights
- connecting some positions with tubes
