Add DevConfig file

Author: normj

.autover/changes/9b9bb131-676c-4fc3-85a0-78b86d128d58.json

@@ -0,0 +1,11 @@
+{
+  "Projects": [
+    {
+      "Name": "Amazon.Lambda.TestTool",
+      "Type": "Minor",
+      "ChangelogMessages": [
+        "Add support emulating Lambda DynamoDB Stream event source"
+      ]
+    }
+  ]
+}