Add example data and tests

Change-Id: Ife7b03d33607ec6c27da39b783e66e28f6496bbc
diff --git a/example-models/wpd19_10000/wpd19_10000.rocksdb/IDENTITY b/example-models/wpd19_10000/wpd19_10000.rocksdb/IDENTITY
new file mode 100644
index 0000000..8f35c99
--- /dev/null
+++ b/example-models/wpd19_10000/wpd19_10000.rocksdb/IDENTITY
@@ -0,0 +1 @@
+dd5c0420-ea13-4fc0-a4b9-e28a8e7b4b3a