QTechniqueFilter: renamed criteria property to requires

Change-Id: Id7b06add196edc64c553cdeff31bc3333fa7acaf
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
QFrameGraphItem: renamed to QFrameGraphNode

Change-Id: I4024d13acd019752544ec20a71e8a00440085846
Task-number: QTBUG-41539
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>