Switch threaded to dynamic threaded generate data (ITK5)

Algorithms/itkAddGaussianNoiseTensorImageFilter.h

Algorithms/itkAddGaussianNoiseTensorImageFilter.txx

Algorithms/itkAverageStdImageFilter.h

Algorithms/itkAverageStdImageFilter.txx

Algorithms/itkAverageStdTensorImageFilter.h

Algorithms/itkAverageStdTensorImageFilter.txx

Algorithms/itkCircleTensorImageSource.h

Algorithms/itkCircleTensorImageSource.txx

Algorithms/itkCrossingTensorImageSource.h

Algorithms/itkCrossingTensorImageSource.txx

Algorithms/itkFlipTensorImageFilter.h

Algorithms/itkFlipTensorImageFilter.txx

Algorithms/itkGaussianDerivativeTensorImageFilter.h

Algorithms/itkGaussianDerivativeTensorImageFilter.txx

Algorithms/itkGradientMagnitudeTensorImageFilter.h

Algorithms/itkGradientMagnitudeTensorImageFilter.txx

Algorithms/itkGradientTensorImageFilter.h

Algorithms/itkGradientTensorImageFilter.txx

Algorithms/itkNormalizeTensorImageFilter.h

Algorithms/itkNormalizeTensorImageFilter.txx