C#/Java: Rename the directories containing the model generator and tests.

java/ql/src/utils/modelgenerator/CaptureSourceModels.ql

@@ -0,0 +1,17 @@
+/**
+ * @name Capture source models.
+ * @description Finds APIs that act as sources as they expose already known sources.
+ * @kind diagnostic
+ * @id java/utils/modelgenerator/source-models
+ * @tags modelgenerator
+ */
+
+import utils.modelgenerator.internal.CaptureModels
+
+class Activate extends ActiveConfiguration {
+  override predicate activateFromSourceConfig() { any() }
+}
+
+from DataFlowTargetApi api, string source
+where source = captureSource(api)
+select source order by source