Add Makefile and Gopkg files

This PR adds Makefile, Dockerfile, Gopkg file, and other scripts.

Gopkg.toml

@@ -0,0 +1,51 @@
+# List of dependecies for CSI snapshotter
+
+required = [
+  "k8s.io/code-generator/cmd/client-gen",
+  "k8s.io/code-generator/cmd/informer-gen",
+  "k8s.io/code-generator/cmd/lister-gen",
+  "k8s.io/code-generator/cmd/deepcopy-gen",
+  "k8s.io/code-generator/cmd/defaulter-gen",
+  "k8s.io/code-generator/cmd/openapi-gen",
+]
+
+
+[[constraint]]
+  name = "github.com/container-storage-interface/spec"
+  version = "~0.3.0" 
+
+[[override]]
+  name = "github.com/golang/protobuf"
+  version = "v1.1.0"
+  
+[[constraint]]
+  branch = "master"
+  name = "github.com/golang/glog"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/kubernetes-csi/csi-test"
+
+[[constraint]]
+  name = "google.golang.org/grpc"
+  version = "1.9.2"
+
+[[constraint]]
+  name = "k8s.io/api"
+  version = "kubernetes-1.11.0"
+
+[[constraint]]
+  name = "k8s.io/apimachinery"
+  version = "kubernetes-1.11.0"
+
+[[constraint]]
+  name = "k8s.io/client-go"
+  version = "kubernetes-1.11.0"
+
+[[override]]
+  name = "github.com/json-iterator/go"
+  version = "1.1.4"
+
+[[constraint]]
+  name = "k8s.io/code-generator"
+  version = "kubernetes-1.11.0"