Crossover for graphs with cycle

[YamLyubov]

Adds crossover suitable for graphs with cycles. Uses http://alglobus.net/NASAwork/papers/JavaGenes2/JavaGenesPaper.html

[pep8speaks]

Hello @YamLyubov! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2024-06-04 10:50:40 UTC

[aim-pep8-bot]

Hello @YamLyubov! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2023-10-27 13:26:52 UTC

[codecov-commenter]

Codecov Report

Merging #231 (d34619c) into main (fcc23ec) will decrease coverage by 2.32%.
Report is 6 commits behind head on main.
The diff coverage is 25.80%.

@@            Coverage Diff             @@
##             main     #231      +/-   ##
==========================================
- Coverage   73.75%   71.43%   -2.32%     
==========================================
  Files         131      136       +5     
  Lines        7834     8220     +386     
==========================================
+ Hits         5778     5872      +94     
- Misses       2056     2348     +292     

Files	Coverage Δ
...lem/core/optimisers/genetic/operators/crossover.py	83.96% <46.66%> (-8.82%)	⬇️
golem/core/dag/graph_utils.py	69.62% <6.25%> (-26.78%)	⬇️

... and 30 files with indirect coverage changes