C#: Add query.

csharp/ql/src/utils/model-generator/CaptureSummaryModelsQuery.ql

@@ -0,0 +1,16 @@
+/**
+ * @name Capture summary models.
+ * @description Finds applicable summary models to be used by other queries.
+ * @id csharp/utils/model-generator/summary-models
+ */
+
+import CaptureSummaryModels
+
+private string captureFlow(TargetAPI api) {
+  result = captureQualifierFlow(api) or
+  result = captureThroughFlow(api)
+}
+
+from TargetAPI api, string flow
+where flow = captureFlow(api)
+select flow order by flow