Added ow.SubstreamSink
Added ow.SubstreamSink

mdittmer/foam,jacksonic/foam,foam-framework/foam,jlhughes/foam,jlhughes/foam,jacksonic/foam,foam-framework/foam,mdittmer/foam,jacksonic/foam,foam-framework/foam,mdittmer/foam,jlhughes/foam,foam-framework/foam,jacksonic/foam,foam-framework/foam,mdittmer/foam,jlhughes/foam