Add a prometheus exporter

Change-Id: I2989d87c2a83eed31c6617694bdcb78bf9b38553
diff --git a/apps/openstacktelemetry/app/BUILD b/apps/openstacktelemetry/app/BUILD
index c3f3b36..06b9f73 100644
--- a/apps/openstacktelemetry/app/BUILD
+++ b/apps/openstacktelemetry/app/BUILD
@@ -2,6 +2,16 @@
     "@kafka_clients//jar",
     "@jersey_client//jar",
     "@influxdb_java//jar",
+    "@simpleclient//jar",
+    "@simpleclient_common//jar",
+    "@simpleclient_hotspot//jar",
+    "@simpleclient_servlet//jar",
+    "@jetty_servlet//jar",
+    "@jetty_http//jar",
+    "@jetty_server//jar",
+    "@jetty_util//jar",
+    "@jetty_websocket//jar",
+    "@servlet_api//jar",
     "@io_grpc_grpc_java//core",
     "@io_grpc_grpc_java//protobuf-lite",
     "//core/store/serializers:onos-core-serializers",