Resolve "PipelineMemoryPrintEstimator stops at ImageList"

Closes #1516 (closed)

Patch should also be cherry-picked to develop

Modules/Core/ObjectList/include/otbImageList.h

@@ -68,6 +68,8 @@ public:
     throw (itk::InvalidRequestedRegionError) ITK_OVERRIDE;
   void UpdateOutputData(void) ITK_OVERRIDE;
 
+  void SetRequestedRegion(const itk::DataObject * source);
+  
 protected:
   /** Constructor */
   ImageList() {};