Colormap parse format

[mwestphal]

• Add proper colormap parsing and formating : val, color, val, color is now supported
• Add documentation
• Add testing
• Fix/Improve related doc

[github-actions]

You are modifying libf3d public API! ⚠️Please update bindings accordingly⚠️!
You can find them in their respective directories: python, java, webassembly.

[github-actions]

Some suggestions could not be made:

• library/private/options_tools.h
  • lines 482-482

[github-actions]

Some suggestions could not be made:

• doc/libf3d/OPTIONS.md
  • lines 42-65

[github-actions]

Some suggestions could not be made:

• doc/libf3d/OPTIONS.md
  • lines 42-65
• library/testing/TestSDKOptions.cxx
  • lines 170-171
• library/testing/TestSDKOptionsIO.cxx
  • lines 197-201

[codecov]

Codecov Report

Attention: Patch coverage is 97.82609% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.78%. Comparing base (0beb460) to head (f86533d).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
library/private/options_tools.h	97.82%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2066   +/-   ##
=======================================
  Coverage   95.78%   95.78%           
=======================================
  Files         125      123    -2     
  Lines       10655    10656    +1     
=======================================
+ Hits        10206    10207    +1     
  Misses        449      449           

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[Meakk]

Awesome! LGTM