REFACTOR: 6375 migrate shielding effectiveness extension

[eblanco-ansys]

Description

• Migrated shielding effectiveness extension to new standard
• Added tests
• Small UI improvement adding a selector

Issue linked

#6375

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).

[ansys-reviewer-bot]

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[codecov]

Codecov Report

❌ Patch coverage is 98.72611% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.36%. Comparing base (ef9d62d) to head (f674c35).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6379      +/-   ##
==========================================
+ Coverage   82.32%   82.36%   +0.03%     
==========================================
  Files         231      231              
  Lines       74210    74340     +130     
==========================================
+ Hits        61093    61227     +134     
+ Misses      13117    13113       -4     

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[Samuelopez-ansys]

LGTM