Add a convenience method Item::addOverlay
Add a convenience method Item::addOverlay

Inspired by Lukas :)
BalzGuenat/Envision,dimitar-asenov/Envision,mgalbier/Envision,Vaishal-shah/Envision,Vaishal-shah/Envision,dimitar-asenov/Envision,dimitar-asenov/Envision,mgalbier/Envision,Vaishal-shah/Envision,dimitar-asenov/Envision,Vaishal-shah/Envision,BalzGuenat/Envision,mgalbier/Envision,BalzGuenat/Envision,BalzGuenat/Envision,lukedirtwalker/Envision,BalzGuenat/Envision,dimitar-asenov/Envision,BalzGuenat/Envision,dimitar-asenov/Envision,Vaishal-shah/Envision,mgalbier/Envision,Vaishal-shah/Envision,lukedirtwalker/Envision,mgalbier/Envision,lukedirtwalker/Envision,mgalbier/Envision,lukedirtwalker/Envision,lukedirtwalker/Envision,lukedirtwalker/Envision