FEAT: FRTM new methods and DOA new features

[Samuelopez-ansys]

Description

Improve FRTM data processing and add Direction of Arrival methods

Issue linked

Please mention the issue number or describe the problem this pull request addresses.

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate tests (unit, integration, system).
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved by the PR if any.
• I have agreed with the Contributor License Agreement (CLA).

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[codecov]

Codecov Report

Attention: Patch coverage is 91.77215% with 26 lines in your changes missing coverage. Please review.

Project coverage is 85.28%. Comparing base (12fdca4) to head (b217bbd).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6221      +/-   ##
==========================================
+ Coverage   85.26%   85.28%   +0.01%     
==========================================
  Files         170      171       +1     
  Lines       64564    64841     +277     
==========================================
+ Hits        55053    55298     +245     
- Misses       9511     9543      +32     

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