Added methods Initialize/Finalize methods vtkInitializationHelper for
ctests to call. Explicitly calling these prevents the linker from removing
VTK factories' auto initialization code which is otherwise unreferenced
during static builds. The new methods also take care of protobuf cleanup.

Remove sm xml from the plugin for the SQ algorithms that make use of RK45
integrator. VTK's implementation is not computing the step size correctly.

Change-Id: Id0261d1e004cf7f9313bc0fee28aeca4feda7d65