`Graph` visualizations improvement

[MorrisNein]

• Refactored default graph representations by matplotlib + networkx.
• Added 'pyvis' visualization engine for interactive graph views via html.
• Added 'graphviz' visualization engine (requires Graphviz and pygraphviz).
• Matplotlib visualization supports nodes_size and edges_curvature arguments.
• All visuals support nodes_color argument.

'matplotlib' engine (default view)

'graphviz' engine

'pyvis' engine (all nodes are moveable by drag-and-drop after rendering)

In synergy with history visualization

Large chain in pyvis

pyvis shows the selected node's params

nodes_color='black'

[pep8speaks]

Hello @MorrisNein! 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 2022-08-16 12:04:18 UTC

[codecov[bot]]

Codecov Report

Merging #798 (a9ceb55) into master (74823a9) will increase coverage by 0.17%. The diff coverage is 71.87%.

@@            Coverage Diff             @@
##           master     #798      +/-   ##
==========================================
+ Coverage   87.37%   87.55%   +0.17%     
==========================================
  Files         184      184              
  Lines       12904    13009     +105     
==========================================
+ Hits        11275    11390     +115     
+ Misses       1629     1619      -10     

Impacted Files	Coverage Δ
fedot/core/visualisation/opt_viz.py	53.37% <57.14%> (-0.08%)	:arrow_down:
fedot/core/visualisation/graph_viz.py	73.52% <71.87%> (+27.06%)	:arrow_up:
fedot/core/dag/graph.py	97.22% <100.00%> (+1.44%)	:arrow_up:
fedot/core/optimisers/graph.py	96.15% <100.00%> (+0.64%)	:arrow_up:
fedot/core/optimisers/opt_history.py	76.19% <100.00%> (ø)
fedot/core/pipelines/tuning/hyperparams.py	91.83% <0.00%> (-2.05%)	:arrow_down:
...implementations/models/ts_implementations/naive.py	93.47% <0.00%> (-1.09%)	:arrow_down:
fedot/core/pipelines/verification_rules.py	95.65% <0.00%> (-0.55%)	:arrow_down:
...entations/models/ts_implementations/statsmodels.py	94.44% <0.00%> (+0.55%)	:arrow_up:
...edot/core/repository/operation_types_repository.py	89.75% <0.00%> (+0.81%)	:arrow_up:
... and 4 more

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[MorrisNein]

'matplotlib' engine (default view)

'graphviz' engine

'pyvis' engine (all nodes are moveable by drag-and-drop after rendering)

In synergy with history visualization

Large chain in pyvis

pyvis shows the selected node's params

nodes_color='black'