Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/Events/03-lowercase_tags.json

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/Events/03-lowercase_tags.json
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/Events/03-lowercase_tags.json b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/Events/03-lowercase_tags.json
new file mode 100644
index 0000000000000000000000000000000000000000..9b58c5999e6615b223c4c43587719081c00cc6ef
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/Events/03-lowercase_tags.json
@@ -0,0 +1,46 @@
+{
+  "name": "Lowercase tags",
+  "options": {
+    "handler": {},
+    "parser": {
+      "lowerCaseTags": true
+    }
+  },
+  "html": "<H1 class=test>adsf</H1>",
+  "expected": [
+    {
+      "event": "opentagname",
+      "data": [
+        "h1"
+      ]
+    },
+    {
+      "event": "attribute",
+      "data": [
+        "class",
+        "test"
+      ]
+    },
+    {
+      "event": "opentag",
+      "data": [
+        "h1",
+        {
+          "class": "test"
+        }
+      ]
+    },
+    {
+      "event": "text",
+      "data": [
+        "adsf"
+      ]
+    },
+    {
+      "event": "closetag",
+      "data": [
+        "h1"
+      ]
+    }
+  ]
+}