Add filter implementation and modules

[adrian-soch]

• Update build tools and test coverage report
• add Quaternion, Utility, Initializer, Attitude Check modules
• Add unit tests

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 77.55102% with 55 lines in your changes are missing coverage. Please review.

Project coverage is 80.14%. Comparing base (0e87744) to head (499c46f).

Files	Patch %	Lines
src/attitude_check.cpp	26.66%	55 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #54      +/-   ##
==========================================
- Coverage   89.65%   80.14%   -9.52%     
==========================================
  Files           6        9       +3     
  Lines          58      282     +224     
  Branches        1       10       +9     
==========================================
+ Hits           52      226     +174     
- Misses          6       56      +50     

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