Include vtkMobileDevices.cmake in VTK cmake config

- this ensures OpenGL::GLES3 is correctly found by find_package

CMake/vtk-config.cmake.in

@@ -165,6 +165,8 @@ if (DEFINED Python3_FIND_STRATEGY)
 endif ()
 set(Python3_FIND_STRATEGY LOCATION)
 
+# Ensures that the OpenGL::GLES3 is found.
+include("${CMAKE_CURRENT_LIST_DIR}/vtkMobileDevices.cmake")
 include("${CMAKE_CURRENT_LIST_DIR}/${CMAKE_FIND_PACKAGE_NAME}-vtk-module-find-packages.cmake")
 
 if (@vtk_opengl_preference_set@) # vtk_opengl_preference_set

CMake/vtkInstallCMakePackage.cmake

@@ -129,6 +129,7 @@ set(vtk_cmake_module_files
   vtkDetectLibraryType.cmake
   vtkEncodeString.cmake
   vtkHashSource.cmake
+  vtkMobileDevices.cmake
   vtkModule.cmake
   vtkModuleGraphviz.cmake
   vtkModuleJson.cmake