Corrected spelling (Guassian->Gaussian)
-Wrote a second itk example filter itk filters without an 'EvaluteAtIndex' function (instead gets filter output and then iterates over copying into the dream3d array)
-There should be a way to avoid iterating by just replacing the dream3d pointer with itkFilter->GetOutput()->GetBufferPointer() but I haven't gotten it working yet
-Still need to write convince functions to convert back from itk to dream3d (either by iterating or with the above getbufferpointer)