[recur] Seacrh for gliders in 1D ECA

[shouldsee]

The algorithm is based on De Bruijn graph, supposedly similar to gfind approach but much more brutal. The advantage is it considers non-vaccum media. The disadvantage is it will be slow.

The script is not user-friendly at all and mainly serves as a basis for search algorithm based in Python in the future (if any at all).

example usage: recur_example.ipynb