ArnoldRenderTest : Improve light/filter linking tests
ArnoldRenderTest : Improve light/filter linking tests

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