Feature/add cpg tests

[michaelyoukeim]

• Fixed the failing tests in the CPG module
• Added a documentation

closes #1002

[github-actions]

Documentation Preview.

[stschott]

Closes #1002

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.18%. Comparing base (2336e6e) to head (269a2e7).
Report is 138 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff               @@
##             develop    #1009       +/-   ##
==============================================
- Coverage      70.30%   43.18%   -27.13%     
- Complexity      4203     4453      +250     
==============================================
  Files            317      587      +270     
  Lines          15736    27313    +11577     
  Branches        2701     4466     +1765     
==============================================
+ Hits           11063    11794      +731     
- Misses          3806    14612    +10806     
- Partials         867      907       +40     

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[swissiety]

👍

[swissiety]

coverage went down a lot.. maybe exclude qilin from test reports at the moment - ill add a comment to the qilin+tests issue

[michaelyoukeim]

@swissiety Thanks! I'll merge with this status.