Examples review (part 1)

Summary

• Sort examples by tag and update RunExamples.py following !387 (merged)

Review the following examples (add figures, description, etc):

• BasicFilters/BandMathFilterExample.cxx
• BasicFilters/DEMToRainbowExample.cxx
• BasicFilters/FrostImageFilter.cxx
• BasicFilters/HillShadingExample.cxx
• BasicFilters/IndexedToRGBExample.cxx
• BasicFilters/LeeImageFilter.cxx
• BasicFilters/MeanShiftSegmentationFilterExample.cxx
• BasicFilters/PrintableImageFilterExample.cxx
• BasicFilters/ScalingFilterExample.cxx

See for example here: https://vpoughon.github.io/otb_cookbook_examples/C++/Examples/BasicFilters/IndexedToRGBExample.html

Rationale

Part of #1865

Copyright

The copyright owner is CNES and has signed the ORFEO ToolBox Contributor License Agreement.

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Check before merging:

• All discussions are resolved
• At least 2 votes from core developers, no vote.
• The feature branch is (reasonably) up-to-date with the base branch
• Dashboard is green
• Copyright owner has signed the ORFEO ToolBox Contributor License Agreement
• Optionally, run git diff develop... -U0 --no-color | clang-format-diff.py -p1 -i on latest changes and commit