Allow building third-party apps based on gRPC

By publishing the repackaged grpc and protobuf artifacts

Change-Id: Ib3af7dba4f64948132aa70be31922de61d6f6ab2
diff --git a/apps/onlp-demo/BUILD b/apps/onlp-demo/BUILD
index 960a820..2ef30c2 100644
--- a/apps/onlp-demo/BUILD
+++ b/apps/onlp-demo/BUILD
@@ -1,8 +1,8 @@
 COMPILE_DEPS = CORE_DEPS + JACKSON + [
-    "@com_google_protobuf//:protobuf_java",
-    "@io_grpc_grpc_java//core",
-    "@io_grpc_grpc_java//netty",
-    "@io_grpc_grpc_java//stub",
+    "//lib:com_google_protobuf_protobuf_java",
+    "//lib:io_grpc_grpc_core_context",
+    "//lib:io_grpc_grpc_netty",
+    "//lib:io_grpc_grpc_stub",
     "//core/store/serializers:onos-core-serializers",
     "//protocols/gnmi/stub:onos-protocols-gnmi-stub",
     "//protocols/gnmi/api:onos-protocols-gnmi-api",