RenderManShaderUI : Reimplemented using LayoutPlugValueWidget.
RenderManShaderUI : Reimplemented using LayoutPlugValueWidget.

Fixes #1126.

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