Update test plugins to properly use packaging type 'eclipse-test-plugin'. Add Surefire Tycho plugin to configuration.
Update test plugins to properly use packaging type 'eclipse-test-plugin'. Add Surefire Tycho plugin to configuration.

From patch submitted by: Andrej Babič <andrej.babic@cosylab.com>

css-iter/org.csstudio.iter,css-iter/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,css-iter/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,css-iter/org.csstudio.iter,css-iter/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,css-iter/org.csstudio.iter,css-iter/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,css-iter/org.csstudio.iter