PipelineMemoryPrintEstimator stops at ImageList

Description

PipelineMemoryPrintEstimator does not estimate memory print of upstream pipeline for ImageLists. As a result, memory estimation is wrong if ImageList is used somewhere in the pipeline.

Steps to reproduce

Perfect example is the ConcatenateImages application, which is unable to keep memory bellow the available ram parameter, when it should be able to do it perfectly (being a pixel-wise operation).

Configuration information

All versions.