Addition of a reliable REST service offered directly off the proxy
rather than requiring a server process. Swagger isn't supported yet.
REST services are offered for both http (port 8882) and https (port
8443) both of which are configurable. Also change the network being used
for voltha-net because (in Ciena) the 10.0.0.0 network is problematic
since it's the primary network used internally which was causing IP
address conflicts. Corrected some errors in the swarm-stop file.

Change-Id: Ic5cbee20324e268b0178312741b2700cdf4eb877
diff --git a/docker/Dockerfile.envoy b/docker/Dockerfile.envoy
index 8007c26..a802c4c 100644
--- a/docker/Dockerfile.envoy
+++ b/docker/Dockerfile.envoy
@@ -3,6 +3,7 @@
 RUN apt-get update && apt-get -q install -y \
     curl
 ADD envoy/front-proxy /envoy/
+ADD envoy/proto.pb /envoy/
 ADD pki /envoy/
 ADD envoy/go/envoyd/envoyd /usr/local/bin