Additional bazel build files for apps

Change-Id: If3f31139022b5657e4a7b8a33871e4eba0da286e
diff --git a/apps/scalablegateway/BUILD b/apps/scalablegateway/BUILD
new file mode 100644
index 0000000..6d56e39
--- /dev/null
+++ b/apps/scalablegateway/BUILD
@@ -0,0 +1,14 @@
+COMPILE_DEPS = CORE_DEPS + JACKSON + KRYO + CLI + [
+    "//core/store/serializers:onos-core-serializers",
+]
+
+osgi_jar_with_tests(
+    deps = COMPILE_DEPS,
+)
+
+onos_app(
+    category = "Traffic Engineering",
+    description = "Scalable gateway service",
+    title = "Scalable Gateway",
+    url = "http://onosproject.org",
+)