Enhancement: Normalize additional properties

[localheinz]

This pull request

• adjusts the SchemaNormalizer to normalize additional properties not defined in the schema

[codecov]

Codecov Report

Merging #639 (accd7ee) into main (bf3a3d6) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head accd7ee differs from pull request most recent head 277ab44. Consider uploading reports for the commit 277ab44 to get more accurate results

@@            Coverage Diff            @@
##               main     #639   +/-   ##
=========================================
  Coverage     99.03%   99.03%           
  Complexity      145      145           
=========================================
  Files            32       32           
  Lines           517      519    +2     
=========================================
+ Hits            512      514    +2     
  Misses            5        5           

Impacted Files	Coverage Δ
src/SchemaNormalizer.php	95.65% <100.00%> (+0.07%)	⬆️

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