Add gRPC publish targets for servers in apps

Added two gRPC public target list dependencies: io_grpc_grpc_netty and
io_grpc_grpc_core_internal. This allows the creation of gRPC servers in
ONOS apps, which can be useful for student projects involving p4runtime.
The first dependency providers a server class, the second dependency
was added to resolve an apparent compile-time issue. Preferably the
second dependency can be eventually removed.

Change-Id: I502c9d515da076b4443ae77a2cb3292a8df4e208
diff --git a/tools/build/publish-target-list b/tools/build/publish-target-list
index a1fa71a..722025c 100644
--- a/tools/build/publish-target-list
+++ b/tools/build/publish-target-list
@@ -59,3 +59,5 @@
     //deps:io_grpc_grpc_api_context
     //deps:io_grpc_grpc_stub
     //deps:io_grpc_grpc_protobuf
+    //deps:io_grpc_grpc_netty
+    //deps:io_grpc_grpc_core_internal