svgfill as plug-in

src/plugin/plugin.cpp

@@ -77,6 +77,8 @@ namespace {
 			return "geometry_serializer";
 		case ifcopenshell::plugin::kind::opencascade_geometry_ifc_writer:
 			return "opencascade_geometry_ifc_writer";
+		case ifcopenshell::plugin::kind::linework_processing:
+			return "linework_processing";
 		default:
 			return "unknown";
 		}

src/plugin/plugin.h

@@ -40,7 +40,8 @@ enum class kind {
 	tree,
 	document_serializer,
 	geometry_serializer,
-	opencascade_geometry_ifc_writer
+	opencascade_geometry_ifc_writer,
+	linework_processing
 };
 
 struct PLUGIN_API abi_info {