Add example data and tests

Change-Id: Ife7b03d33607ec6c27da39b783e66e28f6496bbc
diff --git a/example-models/wpd19_10000/wpd19_10000.rocksdb/CURRENT b/example-models/wpd19_10000/wpd19_10000.rocksdb/CURRENT
new file mode 100644
index 0000000..7ed683d
--- /dev/null
+++ b/example-models/wpd19_10000/wpd19_10000.rocksdb/CURRENT
@@ -0,0 +1 @@
+MANIFEST-000001