Migration to OpenIGTLink release 3.0
Summary: Migrated code to compile with OpenIGTLink release 3.0.
Test Plan: Manual checklist 'MITK to 3D Slicer through OpenIGTLink'
Reviewers: kislinsk, O1 MITK Core
Reviewed By: kislinsk, O1 MITK Core
Differential Revision: https://phabricator.mitk.org/D194