WIP: Wrap pass-by-reference via Java array
When the C++ signature of a VTK method uses a pass-by-reference parameter to return a value, this change allows users of the Java wrappers to pass a single-item array for that parameter.
When the C++ signature of a VTK method uses a pass-by-reference parameter to return a value, this change allows users of the Java wrappers to pass a single-item array for that parameter.