Move RCP test-data to dat and replace String literals for test-models
“platform:/plugin/org.fortiss.af3.rcapplication/test-data/ACC.af3_20” should be in a String literal next to the model it references.
The problem here is that the string literal is contained in a class,
which is below “rcapplication”.
However, this is a sub-optimal: actually an architecture break.
(from redmine: issue id 935, created on 2012-07-27, closed on 2019-05-29)