Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domutils/package.json

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domutils/package.json
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domutils/package.json b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domutils/package.json
new file mode 100644
index 0000000000000000000000000000000000000000..5d8b25ea8b868b6c2ef8928d830780bd1c144c15
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domutils/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "domutils",
+  "version": "1.1.6",
+  "description": "utilities for working with htmlparser2's dom",
+  "main": "index.js",
+  "directories": {
+    "test": "tests"
+  },
+  "scripts": {
+    "test": "node tests/00-runtests.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/FB55/domutils.git"
+  },
+  "keywords": [
+    "dom",
+    "htmlparser2"
+  ],
+  "dependencies": {
+    "domelementtype": "1"
+  },
+  "devDependencies": {
+    "htmlparser2": "2.3",
+    "domhandler": "2"
+  },
+  "author": {
+    "name": "Felix Boehm",
+    "email": "me@feedic.com"
+  },
+  "readme": "utilities for working with htmlparser2's dom\n",
+  "readmeFilename": "readme.md",
+  "bugs": {
+    "url": "https://github.com/FB55/domutils/issues"
+  },
+  "homepage": "https://github.com/FB55/domutils",
+  "_id": "domutils@1.1.6",
+  "_from": "domutils@1.1"
+}