Add StorageOS volume plugin

vendor/github.com/storageos/go-api/util.go

@@ -0,0 +1,16 @@
+package storageos
+
+import (
+	"fmt"
+	"strings"
+)
+
+// ParseRef is a helper to split out the namespace and name from a path
+// reference.
+func ParseRef(ref string) (namespace string, name string, err error) {
+	parts := strings.Split(ref, "/")
+	if len(parts) != 2 {
+		return "", "", fmt.Errorf("Name must be prefixed with <namespace>/")
+	}
+	return parts[0], parts[1], nil
+}