openstack/rackspace get resource type schema op and unit test
diff --git a/rackspace/orchestration/v1/stackresources/delegate.go b/rackspace/orchestration/v1/stackresources/delegate.go
index 03f080d..9029a24 100644
--- a/rackspace/orchestration/v1/stackresources/delegate.go
+++ b/rackspace/orchestration/v1/stackresources/delegate.go
@@ -30,3 +30,8 @@
 func ListTypes(c *gophercloud.ServiceClient) pagination.Pager {
 	return os.ListTypes(c)
 }
+
+// Schema retreives the schema for the given resource type.
+func Schema(c *gophercloud.ServiceClient, resourceType string) os.SchemaResult {
+	return os.Schema(c, resourceType)
+}