improve benchmark and tests
command line arg "-EXT number" to control wavelet size command line arg "-GL" to use OpenGL instead of OSPRay reports wavelet build time too Bring over another test and add -GL command lines to ease comparison
command line arg "-EXT number" to control wavelet size command line arg "-GL" to use OpenGL instead of OSPRay reports wavelet build time too Bring over another test and add -GL command lines to ease comparison