vtkImagingSources: update to the new module system

Imaging/Sources/CMakeLists.txt

-set(Module_SRCS
-  vtkImageCanvasSource2D.cxx
-  vtkImageEllipsoidSource.cxx
-  vtkImageGaussianSource.cxx
-  vtkImageGridSource.cxx
-  vtkImageMandelbrotSource.cxx
-  vtkImageNoiseSource.cxx
-  vtkImageSinusoidSource.cxx
-  )
+set(classes
+  vtkImageCanvasSource2D
+  vtkImageEllipsoidSource
+  vtkImageGaussianSource
+  vtkImageGridSource
+  vtkImageMandelbrotSource
+  vtkImageNoiseSource
+  vtkImageSinusoidSource)
 
-vtk_module_library(${vtk-module} ${Module_SRCS})
+vtk_module_add_module(VTK::ImagingSources
+  CLASSES ${classes})

Imaging/Sources/module.cmake

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

Imaging/Sources/vtk.module

+NAME
+  VTK::ImagingSources
+LIBRARY_NAME
+  vtkImagingSources
+KIT
+  VTK::Imaging
+GROUPS
+  Imaging
+  StandAlone
+DEPENDS
+  VTK::CommonExecutionModel
+PRIVATE_DEPENDS
+  VTK::CommonCore
+  VTK::CommonDataModel
+  VTK::ImagingCore