Merge branch 'add-build-qtdesigner-plugins-option'

* add-build-qtdesigner-plugins-option:
  Add Visualization/VTK/Widgets plugins if BUILD_QTDESIGNER_PLUGINS is ON

Libs/Visualization/VTK/Widgets/CMakeLists.txt

@@ -114,9 +114,9 @@ ctkMacroBuildLib(
   )
 
 # Plugins
-#IF(BUILD_QTDESIGNER_PLUGINS)
-#  ADD_SUBDIRECTORY(Plugins)
-#ENDIF()
+IF(BUILD_QTDESIGNER_PLUGINS)
+  ADD_SUBDIRECTORY(Plugins)
+ENDIF()
 
 # Testing
 IF(BUILD_TESTING)