STYLE: Replace Size var; var.Fill with auto var = Size::Filled

- Following ITK pull request InsightSoftwareConsortium/ITK#4906
commit InsightSoftwareConsortium/ITK@7fd1e73

Author: N-Dekker

Common/itkComputePreconditionerUsingDisplacementDistribution.hxx

@@ -596,8 +596,7 @@ ComputePreconditionerUsingDisplacementDistribution<TFixedImage, TTransform>::Pre
     // average over the neighborhood using only the non -1 entries
     // we should repeat this a couple of times, until no -1's are left
     double tmp = 0.0;
-    GridSizeType radius;
-    radius.Fill(1);
+    auto radius = GridSizeType::Filled(1);
     NeighborhoodIterator<CoefficientImageType> nit(radius, coefImage, region2);
     while (!nit.IsAtEnd())
     {

Components/Metrics/RigidityPenalty/itkTransformRigidityPenaltyTerm.hxx

@@ -2161,8 +2161,7 @@ TransformRigidityPenaltyTerm<TFixedImage, TScalarType>::CreateNDOperator(
   const CoefficientImageSpacingType & spacing) const
 {
   /** Create an operator size and set it in the operator. */
-  NeighborhoodSizeType r;
-  r.Fill(1);
+  auto r = NeighborhoodSizeType::Filled(1);
   F.SetRadius(r);
 
   /** Get the image spacing factors that we are going to use. */

Testing/elxTransformParametersCompare.cxx

@@ -206,8 +206,7 @@ main(int argc, char ** argv)
     config->ReadParameter(dimension, "FixedImageDimension", 0, true, dummyErrorMessage);
 
     /** Get coefficient image information. */
-    SizeType gridSize;
-    gridSize.Fill(1);
+    auto        gridSize = SizeType::Filled(1);
     IndexType   gridIndex{};
     SpacingType gridSpacing;
     gridSpacing.Fill(1.0);

Testing/itkBSplineInterpolationDerivativeWeightFunctionTest.cxx

@@ -159,8 +159,7 @@ main()
     return 1;
   }
 
-  DerivativeWeightFunctionType::SizeType trueSize;
-  trueSize.Fill(SplineOrder + 1);
+  auto trueSize = DerivativeWeightFunctionType::SizeType::Filled(SplineOrder + 1);
   if (DerivativeWeightFunctionType::SupportSize != trueSize)
   {
     std::cerr << "ERROR: wrong support size was computed." << std::endl;

Testing/itkBSplineInterpolationSODerivativeWeightFunctionTest.cxx

@@ -248,8 +248,7 @@ main()
     return 1;
   }
 
-  SODerivativeWeightFunctionType::SizeType trueSize;
-  trueSize.Fill(SplineOrder + 1);
+  auto trueSize = SODerivativeWeightFunctionType::SizeType::Filled(SplineOrder + 1);
   if (SODerivativeWeightFunctionType::SupportSize != trueSize)
   {
     std::cerr << "ERROR: wrong support size was computed." << std::endl;

Testing/itkBSplineInterpolationWeightFunctionTest.cxx

@@ -245,8 +245,7 @@ main()
     return EXIT_FAILURE;
   }
 
-  WeightFunction2Type2D::SizeType trueSize;
-  trueSize.Fill(SplineOrder + 1);
+  auto trueSize = WeightFunction2Type2D::SizeType::Filled(SplineOrder + 1);
   if (WeightFunction2Type2D::SupportSize != trueSize)
   {
     std::cerr << "ERROR: wrong support size was computed." << std::endl;

Testing/itkGPUResampleImageFilterTest.cxx

@@ -441,8 +441,7 @@ SetTransform(const std::size_t                                            transf
     const typename InputImageType::SizeType      inputSize = inputRegion.GetSize();
 
     using MeshSizeType = typename BSplineTransformType::MeshSizeType;
-    MeshSizeType gridSize;
-    gridSize.Fill(4);
+    auto gridSize = MeshSizeType::Filled(4);
 
     using PhysicalDimensionsType = typename BSplineTransformType::PhysicalDimensionsType;
     PhysicalDimensionsType gridSpacing;