Check size of iteration dimension
Bugfix: Images / Labelings with different sizes but same iteration intervals are supported
Bugfix: Support Images / Labeling with different sizes, but same iteration intervals
Merge branch '1.2.1' of github.com:knime-ip/knip into 1.2.1

Conflicts:
	org.knime.knip.base/src/org/knime/knip/base/nodes/util/slicelooper/SliceIteratorLoopStartNodeModel.java