FEAT: Add new method to convert far field data to ffd

[maxcapodi78]

Description

Add new method to convert far field data to ffd

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

All modified and coverable lines are covered by tests ✅

Project coverage is 85.40%. Comparing base (efbe7ca) to head (022abf0).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6392      +/-   ##
==========================================
+ Coverage   83.67%   85.40%   +1.72%     
==========================================
  Files         175      175              
  Lines       66158    66282     +124     
==========================================
+ Hits        55360    56605    +1245     
+ Misses      10798     9677    -1121     

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