COMP: Update examples to the new build system to avoid warnings

Warning that was triggered:

CMake Warning (dev) at CMake/UseITK.cmake:28 (message):
  CMake/UseITK.cmake is deprecated.

  Please update CMakeLists.txt to use `find_package(ITK)` and link to
  "${ITK_INTERFACE_LIBRARIES}".

Call Stack (most recent call first):
  Modules/Remote/Montage/examples/CMakeLists.txt:23 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

Author: dzenanz

examples/CMakeLists.txt

@@ -13,32 +13,25 @@ set(ExampleSpecificComponents
   ITKTestKernel
   )
 
-if(NOT ITK_SOURCE_DIR)
-  find_package(ITK 5.2 REQUIRED COMPONENTS ITKImageIO ITKTransformIO ${ExampleSpecificComponents})
-else()
-  # when being built as part of ITK, ITKImageIO and ITKTransformIO
-  # lists of modules are not yet ready, causing a configure error
-  find_package(ITK REQUIRED COMPONENTS ${ExampleSpecificComponents})
-endif()
-include(${ITK_USE_FILE})
+find_package(ITK 6.0 REQUIRED COMPONENTS ITKImageIO ITKTransformIO ${ExampleSpecificComponents})
 
 add_executable(PhaseCorrelationImageRegistration PhaseCorrelationImageRegistration.cxx)
-target_link_libraries(PhaseCorrelationImageRegistration ${ITK_LIBRARIES})
+target_link_libraries(PhaseCorrelationImageRegistration ${ITK_INTERFACE_LIBRARIES})
 
 add_executable(CompleteMontage CompleteMontage.cxx)
-target_link_libraries(CompleteMontage ${ITK_LIBRARIES})
+target_link_libraries(CompleteMontage ${ITK_INTERFACE_LIBRARIES})
 
 add_executable(RefineMontage RefineMontage.cxx)
-target_link_libraries(RefineMontage ${ITK_LIBRARIES})
+target_link_libraries(RefineMontage ${ITK_INTERFACE_LIBRARIES})
 
 add_executable(ResampleMontage ResampleMontage.cxx)
-target_link_libraries(ResampleMontage ${ITK_LIBRARIES})
+target_link_libraries(ResampleMontage ${ITK_INTERFACE_LIBRARIES})
 
 add_executable(CompareTileConfigurations CompareTileConfigurations.cxx)
-target_link_libraries(CompareTileConfigurations ${ITK_LIBRARIES})
+target_link_libraries(CompareTileConfigurations ${ITK_INTERFACE_LIBRARIES})
 
 add_executable(MontageImageCompareCommand MontageImageCompareCommand.cxx)
-target_link_libraries(MontageImageCompareCommand ${ITK_LIBRARIES})
+target_link_libraries(MontageImageCompareCommand ${ITK_INTERFACE_LIBRARIES})
 
 
 # add some regression tests