properly scaffold streamtube trace module

Author: etpinard

lib/index-gl3d.js

@@ -14,7 +14,8 @@ Plotly.register([
     require('./scatter3d'),
     require('./surface'),
     require('./mesh3d'),
-    require('./cone')
+    require('./cone'),
+    require('./streamtube')
 ]);
 
 module.exports = Plotly;

lib/index.js

@@ -27,8 +27,7 @@ Plotly.register([
     require('./surface'),
     require('./mesh3d'),
     require('./cone'),
-
-    require('../src/traces/streamtube'),
+    require('./streamtube'),
 
     require('./scattergeo'),
     require('./choropleth'),

lib/streamtube.js

@@ -0,0 +1,11 @@
+/**
+* Copyright 2012-2018, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+'use strict';
+
+module.exports = require('../src/traces/streamtube');