Changes to allow setting particle tracer optimizations.

Before vtkParticleTracerBase assumed a non-changing multiblock
data structure and input seeds. VTK was updated to allow that to
be set while assuming the more general case of each of them not
being static. ParaView was modified to allow those settings to
be modified through servermanager.

Change-Id: I33766123deeeffac2e9ffde61add9fa0ca72ba18
Merge topic '14486_enable_particlepaths_optimizations' into next

3742d8f Changes to allow setting particle tracer optimizations.