Some enchancements to the pointsplatter
Expose the Emissive boolean in the PV gui
Pass the PointSize GUI element down to VTK
Change the default scale to 0.0 as that is the fast path and lowest memory and should be done first
Expose the Emissive boolean in the PV gui
Pass the PointSize GUI element down to VTK
Change the default scale to 0.0 as that is the fast path and lowest memory and should be done first