vtkImagingStencil: update to the new module system

Imaging/Stencil/CMakeLists.txt

-set(Module_SRCS
-  vtkImageStencil.cxx
-  vtkImageStencilToImage.cxx
-  vtkImageToImageStencil.cxx
-  vtkImplicitFunctionToImageStencil.cxx
-  vtkLassoStencilSource.cxx
-  vtkPolyDataToImageStencil.cxx
-  vtkROIStencilSource.cxx
-  )
+set(classes
+  vtkImageStencil
+  vtkImageStencilToImage
+  vtkImageToImageStencil
+  vtkImplicitFunctionToImageStencil
+  vtkLassoStencilSource
+  vtkPolyDataToImageStencil
+  vtkROIStencilSource)
 
-vtk_module_library(${vtk-module} ${Module_SRCS})
+vtk_module_add_module(VTK::ImagingStencil
+  CLASSES ${classes})

Imaging/Stencil/module.cmake

-vtk_module(vtkImagingStencil
-  GROUPS
-    Imaging
-    StandAlone
-  KIT
-    vtkImaging
-  DEPENDS
-    vtkCommonExecutionModel
-    vtkImagingCore
-  PRIVATE_DEPENDS
-    vtkCommonComputationalGeometry
-    vtkCommonCore
-    vtkCommonDataModel
-  )
\ No newline at end of file

Imaging/Stencil/vtk.module

+NAME
+  VTK::ImagingStencil
+LIBRARY_NAME
+  vtkImagingStencil
+KIT
+  VTK::Imaging
+GROUPS
+  Imaging
+  StandAlone
+DEPENDS
+  VTK::CommonExecutionModel
+  VTK::ImagingCore
+PRIVATE_DEPENDS
+  VTK::CommonComputationalGeometry
+  VTK::CommonCore
+  VTK::CommonDataModel