Added vulcanize under third_party/npm_modules

node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/undefined.js

Index: node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/undefined.js
diff --git a/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/undefined.js b/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/undefined.js
new file mode 100644
index 0000000000000000000000000000000000000000..31b8cfd88dcce9842724110001ac72633753b64c
--- /dev/null
+++ b/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/undefined.js
@@ -0,0 +1,28 @@
+'use strict';
+
+
+var Type = require('../../type');
+
+
+function resolveJavascriptUndefined(state) {
+  state.result = undefined;
+  return true;
+}
+
+
+function representJavascriptUndefined(/*object, explicit*/) {
+  return '';
+}
+
+
+function isUndefined(object) {
+  return 'undefined' === typeof object;
+}
+
+
+module.exports = new Type('tag:yaml.org,2002:js/undefined', {
+  loadKind: 'scalar',
+  loadResolver: resolveJavascriptUndefined,
+  dumpPredicate: isUndefined,
+  dumpRepresenter: representJavascriptUndefined
+});