1. Updated CMB-specific Icons
2. Removed Icons that were copied from ParaView and instead we now directly
reference them from ParaView

NOTE: the qtCMBMainWindow.ui file references teh location of the
paraview Icons's qrc file.  This path is correct within a SuperBuild but may not
be if you are using a developer build.  PLEASE: do not change these paths (they are only
used by QtDesigner)