Adding support for TLS connections for gRPC clients

This patch uses BoringSSL to negotiate TLS sessions under the hood.

Change-Id: I1495479ff33654f9cffe04d61f293c3e923b8aeb
diff --git a/tools/package/features/BUILD b/tools/package/features/BUILD
index 6f3532c4..382bee5 100644
--- a/tools/package/features/BUILD
+++ b/tools/package/features/BUILD
@@ -20,13 +20,14 @@
         "@io_netty_netty//jar",
         "@io_netty_netty_common//jar",
         "@io_netty_netty_buffer//jar",
-        "@io_netty_netty_transport//jar",
         "@io_netty_netty_handler//jar",
+        "@io_netty_netty_tcnative_boringssl//jar",
         "@io_netty_netty_codec//jar",
         "@io_netty_netty_codec_http//jar",
         "@io_netty_netty_codec_http2//jar",
         "@io_netty_netty_codec_socks//jar",
         "@io_netty_netty_handler_proxy//jar",
+        "@io_netty_netty_transport//jar",
         "@io_netty_netty_transport_native_epoll//jar",
         "@io_netty_netty_transport_native_unix_common//jar",
         "@io_netty_netty_resolver//jar",