Add is used flag to material

[Samuelopez-ansys]

Close #3815

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[Samuelopez-ansys]

@gmalinve This new property detects if the material is used in the project or not, it is not specific for the design, but in a new PR, it could be implemented. But it does not exist in the AEDT API the method to find if the material is used in a specific design, with a couple of loops we could implement it in the future.

[codecov]

Codecov Report

Merging #3854 (1d01dd0) into main (db50f96) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #3854   +/-   ##
=======================================
  Coverage   81.12%   81.12%           
=======================================
  Files         180      180           
  Lines       62291    62297    +6     
=======================================
+ Hits        50535    50541    +6     
  Misses      11756    11756