GafferRenderManUI : Adopt new nodeGraphLayout metadata convention
GafferRenderManUI : Adopt new nodeGraphLayout metadata convention

boberfly/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer,hradec/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer,boberfly/gaffer,lucienfostier/gaffer,GafferHQ/gaffer,boberfly/gaffer,ivanimanishi/gaffer,johnhaddon/gaffer,ivanimanishi/gaffer,hradec/gaffer,boberfly/gaffer,ImageEngine/gaffer,ivanimanishi/gaffer,appleseedhq/gaffer,hradec/gaffer,johnhaddon/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,ivanimanishi/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,ImageEngine/gaffer,hradec/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,hradec/gaffer,appleseedhq/gaffer