Add color option for normal glyphs attributes

[Sukumarsawant]

Describe your changes

Adds the color option for normal glyphs with tests and image
part of #3120

Issue ticket number and link if any

Checklist for finalizing the PR

• I have performed a self-review of my code
• I have added tests for new features and bugfixes
• I have added documentation for new features
• If it is a modifying the libf3d API, I have updated bindings
• If it is a modifying the .github/workflows/versions.json, I have updated docker_timestamp

AI Disclosure

• I did not use AI to generate any of the content of that pull request
• I used AI to generate code in that pull request, if yes please disclose which part of the code was generated and with which model.
• ...

Continuous integration

Please write a comment to run CI, eg: \ci fast.
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[Sukumarsawant]

\ci fast

[Sukumarsawant]

\ci main

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.06%. Comparing base (00976fd) to head (51f04fd).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3343   +/-   ##
=======================================
  Coverage   97.06%   97.06%           
=======================================
  Files         213      213           
  Lines       18098    18111   +13     
=======================================
+ Hits        17566    17579   +13     
  Misses        532      532           

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[Sukumarsawant]

\ci full

[Meakk]

That looks good! Please address the documentation suggestions.

[Sukumarsawant]

\ci full

[mwestphal]

changes needed

[github-actions]

❌ Invalid CI command "full"

[Sukumarsawant]

checking failures .

[mwestphal]

not ready for full ci

[mwestphal]

not ready, lets discuss :)