T28388 deserializeXMLToScalarListLookupTableProperty_does_not_work_correctly_with_empty_string

Summary:
Fixed behavior of serialization function
+ added checks to ItkImageIO and LabelSetImageIO to log error

if deserialization functions due not comply to the post condition
to return a valid property instance. So far the null pointer would have
been added as property. For invalid properties we can skipp the adding
and the definition of persistance infos.

Test Plan: review, unit test

Reviewers: O1 MITK Reviewer Group I, O3 MITK Reviewer Group II, kislinsk

Reviewed By: O1 MITK Reviewer Group I, O3 MITK Reviewer Group II, kislinsk

Subscribers: kislinsk

Maniphest Tasks: T28388

Differential Revision: https://phabricator.mitk.org/D475