Image regression application
Summary
The application PredictRegression has been renamed in ImageRegression, for the sake of consistency with the other classification applications (ImageClassification, ImageDimensionalityReduction).
The regression part of the classification recipe has been updated to use the new applications.
This MR is the final part of the #1799 (closed) refactoring, which replaced the old regression applications (TrainRegression and PredictRegression) by :
- 
TrainVectorRegression: training with vector data input, regression equivalent ofTrainVectorClassifier - 
TrainImagesRegression: training with image input, regression equivalent ofTrainImagesClassifier - 
VectorRegression: prediction with vector data input, regression equivalent ofVectorClassifer - 
ImageRegression: prediction with image input, regression equivalent ofImageClassifier 
Copyright
The copyright owner is CNES and has signed the ORFEO ToolBox Contributor License Agreement.
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
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 - Optionally, run 
git diff develop... -U0 --no-color | clang-format-diff.py -p1 -ion latest changes and commit