Adding skeletal onos-topo integration app

Change-Id: I80f39193ef25fb5d46b0053d76409165d07ec4ea
diff --git a/apps/onos-topo/api/BUILD b/apps/onos-topo/api/BUILD
new file mode 100644
index 0000000..0c0b22d
--- /dev/null
+++ b/apps/onos-topo/api/BUILD
@@ -0,0 +1,13 @@
+load("//tools/build/bazel:osgi_java_library.bzl", "osgi_proto_jar")
+
+PROTOS = [
+    "@com_github_onosproject_onos_topo//:topo_device_proto",
+]
+
+osgi_proto_jar(
+    grpc_proto_lib = "@com_github_onosproject_onos_topo//:topo_device_proto",
+    proto_libs = PROTOS,
+    deps = [
+        "@com_google_api_grpc_proto_google_common_protos//jar",
+    ],
+)