This rather large update adds the following
- A golang build container used for building golang executables and/or
  containers.
- envoyd, a daemon process that creates and updates the envoy config
  file based on consul's KV store and forces envoy to reload the config
  as it changes.
- Dockerfile(s) and compose files that integrate envoy into the NBI call
  chain to load-balance device-to-core assignment.
- Several developer tools that help build and replace specific
  containers in a running cluster. This allows the build process to be
  separated from the run-time as it will be in production.
- NOTES: A command line needs to be added to envoyd because now the
  values are declared at the start of the file. This will be submitted
  in a subsequent commit along with a change toward a more object
  oriented implementation.

Addressed reviewer comments.
Addressed even more reviewr comments.
Change-Id: Ia2ec825d48d475398e501f396452fb0306673432
diff --git a/envoy/go/envoyd/Makefile b/envoy/go/envoyd/Makefile
new file mode 100644
index 0000000..f164409
--- /dev/null
+++ b/envoy/go/envoyd/Makefile
@@ -0,0 +1,3 @@
+
+all:
+	./build_binary.sh