Update qtAttributePreview
Adds back some options that are handy from time to time. Most notably, it supports loading model files (native or smtk) with the vtk session. The command line args were also updated to use the Qt parser.
Adds back some options that are handy from time to time. Most notably, it supports loading model files (native or smtk) with the vtk session. The command line args were also updated to use the Qt parser.