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/README.md.tpl b/vendor/github.com/bsm/sarama-cluster/README.md.tpl
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+# Sarama Cluster
+
+[![GoDoc](https://godoc.org/github.com/bsm/sarama-cluster?status.svg)](https://godoc.org/github.com/bsm/sarama-cluster)
+[![Build Status](https://travis-ci.org/bsm/sarama-cluster.svg?branch=master)](https://travis-ci.org/bsm/sarama-cluster)
+[![Go Report Card](https://goreportcard.com/badge/github.com/bsm/sarama-cluster)](https://goreportcard.com/report/github.com/bsm/sarama-cluster)
+[![License](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
+
+Cluster extensions for [Sarama](https://github.com/Shopify/sarama), the Go client library for Apache Kafka 0.9 (and later).
+
+## Documentation
+
+Documentation and example are available via godoc at http://godoc.org/github.com/bsm/sarama-cluster
+
+## Examples
+
+Consumers have two modes of operation. In the default multiplexed mode messages (and errors) of multiple
+topics and partitions are all passed to the single channel:
+
+```go
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"os/signal"
+
+	cluster "github.com/bsm/sarama-cluster"
+)
+
+func main() {{ "ExampleConsumer" | code }}
+```
+
+Users who require access to individual partitions can use the partitioned mode which exposes access to partition-level
+consumers:
+
+```go
+package main
+
+import (
+  "fmt"
+  "log"
+  "os"
+  "os/signal"
+
+  cluster "github.com/bsm/sarama-cluster"
+)
+
+func main() {{ "ExampleConsumer_Partitions" | code }}
+```
+
+## Running tests
+
+You need to install Ginkgo & Gomega to run tests. Please see
+http://onsi.github.io/ginkgo for more details.
+
+To run tests, call:
+
+	$ make test
+
+## Troubleshooting
+
+### Consumer not receiving any messages?
+
+By default, sarama's `Config.Consumer.Offsets.Initial` is set to `sarama.OffsetNewest`. This means that in the event that a brand new consumer is created, and it has never committed any offsets to kafka, it will only receive messages starting from the message after the current one that was written.
+
+If you wish to receive all messages (from the start of all messages in the topic) in the event that a consumer does not have any offsets committed to kafka, you need to set `Config.Consumer.Offsets.Initial` to `sarama.OffsetOldest`.