Fix cmake issue when PARAVIEW_BUILD_QT_GUI is OFF.

Disable streaming test when PARAVIEW_BUILD_QT_GUI is OFF.

Change-Id: I41cb9bc3b4a0f46613828ff0a8803d3f39450d63
Merge topic 'fix_particle_streaming' into next

406c049 Fix cmake issue when PARAVIEW_BUILD_QT_GUI is OFF.