1138 plot functions for AST in generation package

[dr2001dlr]

Changes and Information

Please briefly list the changes (main added features, changed items, or corrected bugs) made:

• New class Visualization in graph_visualization.py
• Ast output as file, output in terminal or as an png
• Changes in scanner.py
• New class for AST

If need be, add additional information and what the reviewer should look out for in particular:

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• Every addressed issue is linked (use the "Closes #ISSUE" keyword below)
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Closes #1138

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.59%. Comparing base (0962eb0) to head (6f8a535).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1140   +/-   ##
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  Coverage   96.59%   96.59%           
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  Files         137      137           
  Lines       11057    11057           
=======================================
  Hits        10680    10680           
  Misses        377      377           

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[MaxBetzDLR]

Looks good, just needs some small adjustments.

[MaxBetzDLR]

The example still uses the old print function and scanner. Update the file and add the graphviz.