Add component extraction for multi-component images; use component extraction with the 2D segmentation tools
Summary:
The 'mitkExtractSliceFilter'-class is extended to extract a specified component from a multi-component image.
Extracting a specified component will be performed by setting
filter->SetComponent(component); filter->SetComponentFlag(true); Test Plan: - Reviewers: goch, O1 MITK Core Reviewed By: goch, O1 MITK Core Subscribers: kalali, goch Maniphest Tasks: T19935 Differential Revision: https://phabricator.mitk.org/D33