Menu: Create visual menu items lazily
Menu: Create visual menu items lazily

Change-Id: I68c21248f7779002275815d339a0e982ed6f2860
Reviewed-by: J-P Nurmi <b84a892f57a298bb5dae653b4e188948a84d5549@digia.com>

jfaust/qtquickcontrols,richardmg/qtcomponents,mizukusak/qtquickcontrols,drgvond/qtquickcontrols,kobolabs/qtquickcontrols,jfaust/qtquickcontrols,drgvond/qtquickcontrols,mizukusak/qtquickcontrols,kobolabs/qtquickcontrols,richardmg/qtcomponents,kobolabs/qtquickcontrols,mizukusak/qtquickcontrols,richardmg/qtcomponents,jfaust/qtquickcontrols,drgvond/qtquickcontrols