VOL-1558 Implementation of openolt adapter with dep for dependency management
Also updated the build system to take this into account.

Currently dep ensure fails due to missing libraries in voltha-go, but the vendor folder has been updated otherwise.
This can be worked around in development using the LOCAL_VOLTHAGO variable described in the readme
This does not build currrently, but that is due to missing code in voltha-go master.

This pattern is consistent with how voltha-go does things, but does not leave you dependent on it to build.

See the readme for how to use dep.

The resourcemanager file is no longer hidden.

Change-Id: I25b8472dbc517b193970597c9f43ddff18c2d89f
diff --git a/vendor/github.com/bsm/sarama-cluster/doc.go b/vendor/github.com/bsm/sarama-cluster/doc.go
new file mode 100644
index 0000000..9c8ff16
--- /dev/null
+++ b/vendor/github.com/bsm/sarama-cluster/doc.go
@@ -0,0 +1,8 @@
+/*
+Package cluster provides cluster extensions for Sarama, enabing users
+to consume topics across from multiple, balanced nodes.
+
+It requires Kafka v0.9+ and follows the steps guide, described in:
+https://cwiki.apache.org/confluence/display/KAFKA/Kafka+0.9+Consumer+Rewrite+Design
+*/
+package cluster