FEAT: Layered impedance boundary

[Samuelopez-ansys]

Description

HFSS Layered impedance boundary.
THis pull request also adds PerfectE and PerfectH boundary to be consistent with new PYAEDT style.
Assign_coating method is deprecated to assign_finite_conductivity which follows HFSS naming

Issue linked

Close #5963

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 85.75581% with 49 lines in your changes missing coverage. Please review.

Project coverage is 85.02%. Comparing base (28515e3) to head (f2f15e4).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #5970    +/-   ##
========================================
  Coverage   85.01%   85.02%            
========================================
  Files         162      162            
  Lines       62568    62684   +116     
========================================
+ Hits        53194    53296   +102     
- Misses       9374     9388    +14     

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