uriMappings for installed plugins

plugins/org.yakindu.sct.model.stext/src/org/yakindu/sct/model/stext/GenerateExpressions.mwe2

@@ -15,6 +15,8 @@ Workflow {
 		platformUri = "${runtimeProject}/.."
 		registerGenModelFile = "platform:/resource/org.yakindu.sct.model.sgraph/model/emf/sgraph.genmodel"
 		registerGenModelFile = "platform:/resource/org.yakindu.base.types/model/types.genmodel"
+		registerGeneratedEPackage = "org.yakindu.sct.model.sgraph.SGraphPackage"
+		registerGeneratedEPackage = "org.yakindu.base.types.TypesPackage"
 	}
 
 	component = DirectoryCleaner {