Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/tests/16-ignore_whitespace.json

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/tests/16-ignore_whitespace.json
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/tests/16-ignore_whitespace.json b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/tests/16-ignore_whitespace.json
new file mode 100644
index 0000000000000000000000000000000000000000..1ced711b8d8ad19a37a8d99028f4e7d9d1506155
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/tests/16-ignore_whitespace.json
@@ -0,0 +1,46 @@
+{
+  "name": "Options 'ignoreWhitespace' set to 'true'",
+  "options": {
+    "handler": {
+      "ignoreWhitespace": true
+    },
+    "parser": {}
+  },
+  "html": "Line one\n<br> \t\n<br>\nline two<font>\n <br> x </font>",
+  "expected": [
+    {
+      "data": "Line one\n",
+      "type": "text"
+    },
+    {
+      "type": "tag",
+      "name": "br",
+      "attribs": {}
+    },
+    {
+      "type": "tag",
+      "name": "br",
+      "attribs": {}
+    },
+    {
+      "data": "\nline two",
+      "type": "text"
+    },
+    {
+      "type": "tag",
+      "name": "font",
+      "attribs": {},
+      "children": [
+        {
+          "type": "tag",
+          "name": "br",
+          "attribs": {}
+        },
+        {
+          "data": " x ",
+          "type": "text"
+        }
+      ]
+    }
+  ]
+}