Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/lib/select.js

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/lib/select.js
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/lib/select.js b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/lib/select.js
new file mode 100644
index 0000000000000000000000000000000000000000..6bcb81c022916597cff89bfab6ef26d2a936dd7e
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/lib/select.js
@@ -0,0 +1,37 @@
+/*
+ * Module dependencies
+ */
+var CSSselect = require('CSSselect'),
+    isArray = Array.isArray;
+
+/*
+ * Select function
+ */
+exports = module.exports = function(query, dom) {
+  dom = normalize(dom);
+
+  return CSSselect.iterate(query, dom);
+};
+
+/*
+ * Normalize the dom
+ */
+var normalize = exports.normalize = function(dom) {
+  dom = dom.cheerio ? dom.toArray() : dom;
+  dom = isArray(dom) ? dom : [dom];
+
+  var len = dom.length,
+      out = [],
+      elem;
+
+  for(var i = 0; i < len; i++) {
+    elem = dom[i];
+    if(elem.type === 'root') {
+      out = out.concat(elem.children || []);
+    } else {
+      out.push(elem);
+    }
+  }
+
+  return out;
+};