Added locale awareness for string conversion
Summary: Signed-off-by: Ralf Floca <r.floca@dkfz-heidelberg.de>
Test Plan: Review
Reviewers: O3 MITK Reviewer Group II, kalali
Reviewed By: O3 MITK Reviewer Group II, kalali
Maniphest Tasks: T27229
Differential Revision: https://phabricator.mitk.org/D265