Modified ITK cmakelists to only import required ITK modules instead of entire library
Created an example/test filter using ITK
-wraps dream3d array into itk::image and runs itk guassian blur filter (I have only checked this on a 1 slice thick image data set but everything seems to work)
-allows selection of array to blur (but right now it must be a uint_8 array
-creates new array that is a float image type (option to replace input data instead of creating new array)