Merge pull request #511 from kislinsk/command-line-modules-require-qt5-widgets

Replaced Qt5::Gui dependency of CommandLineModules/Core with Qt5::Widgets.

Libs/CommandLineModules/Core/CMakeLists.txt

@@ -80,7 +80,7 @@ set(KIT_resources
 ctkFunctionGetTargetLibraries(KIT_target_libraries)
 
 if(CTK_QT_VERSION VERSION_GREATER "4")
-  list(APPEND KIT_target_libraries Qt5::XmlPatterns Qt5::Gui Qt5::Concurrent)
+  list(APPEND KIT_target_libraries Qt5::XmlPatterns Qt5::Widgets Qt5::Concurrent)
 else()
   set(QT_USE_QTXMLPATTERNS 1)
   include(${QT_USE_FILE})