Remove the RAnd* family of filters

Summary

This MR removes the RAnGAndNIR filters family.

Rationale

Those filters are pretty much useless. I could replace all of them with a standard itk functor filter without any damage. This saves a huge amount of code, reduce the number of tests and potentially test data.

Note that this MR slightly decrease coverage but that tests for each functor will be added in further refactoring in new merge requests. See #1870 (closed) for the big picture.

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

You also need to update examples

added 1 commit

• be7d3eba - COMP: Missing refactoring in examples

Compare with previous version

added 3 commits

• b6a1d3fb - COMP: Fix examples following filters removal
• 63a2f365 - DOC: Update documentation to remove references to removed filters
• 8cd62a5d - COMP: Removing unused file

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@all CI is failing during git fetch, error unrelated to MR content ...

Fix in !438 (merged)

added refactoring label

added api label

added 53 commits

• 8cd62a5d...64148d77 - 52 commits from branch develop
• f27b5577 - Merge branch 'develop' into 1870-remove-filters

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unmarked as a Work In Progress

changed the description

Added for dashboard testing.

Dashboards look green (thouh it is even hard than usual to tell). I miss one vote thougth.

How can it be harder? It is almost the same!

merged

mentioned in commit f8ff7c1a

changed milestone to %7.0.0