Multiline refactor

[YamLyubov]

Adds:

• PopulationalRandomMutationOptimizer
• dag generator
• lightweght histories loading for 'MultipleFitnessLines'

Fixes:

• fitness boxplot palette setting (according to seaborn 0.13.0)
• fix read the docs build (https://blog.readthedocs.com/use-build-os-config/)

[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! :beers:

Comment last updated at 2023-10-02 13:26:23 UTC

[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! :beers:

Comment last updated at 2023-10-05 12:02:12 UTC

[codecov-commenter]

Codecov Report

Merging #195 (b535c72) into main (a2cfbde) will decrease coverage by 0.59%. The diff coverage is 29.41%.

@@            Coverage Diff             @@
##             main     #195      +/-   ##
==========================================
- Coverage   74.35%   73.76%   -0.59%     
==========================================
  Files         130      131       +1     
  Lines        7760     7826      +66     
==========================================
+ Hits         5770     5773       +3     
- Misses       1990     2053      +63     

Files	Coverage Δ
golem/core/optimisers/optimizer.py	95.55% <100.00%> (+0.96%)	:arrow_up:
golem/core/optimisers/populational_optimizer.py	95.65% <ø> (-0.65%)	:arrow_down:
golem/visualisation/opt_history/fitness_box.py	90.32% <100.00%> (ø)
golem/visualisation/opt_history/fitness_line.py	40.22% <94.73%> (+5.07%)	:arrow_up:
golem/core/optimisers/random/random_search.py	37.73% <11.11%> (-1.85%)	:arrow_down:
...ore/optimisers/random/random_mutation_optimizer.py	51.35% <38.09%> (-19.24%)	:arrow_down:
...visualisation/opt_history/multiple_fitness_line.py	0.00% <0.00%> (ø)

... and 3 files with indirect coverage changes