Qt Quick 3D - RuntimeLoader Example
 QT += quick quick3d
 target.path = $$[QT_INSTALL_EXAMPLES]/quick3d/runtimeloader
 INSTALLS += target
 qtHaveModule(widgets)  {
     QT += widgets
     DEFINES += HAS_MODULE_QT_WIDGETS
 }
 TARGET = runtimeloader
 SOURCES += \
         main.cpp
 RESOURCES += qml.qrc