Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/float.patch

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/float.patch
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/float.patch b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/float.patch
new file mode 100644
index 0000000000000000000000000000000000000000..0ad71a1f0d36004077f2724803ab055b8cd68526
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/float.patch
@@ -0,0 +1,68 @@
+diff --git a/lib/_stream_duplex.js b/lib/_stream_duplex.js
+index c5a741c..a2e0d8e 100644
+--- a/lib/_stream_duplex.js
++++ b/lib/_stream_duplex.js
+@@ -26,8 +26,8 @@
+ 
+ module.exports = Duplex;
+ var util = require('util');
+-var Readable = require('_stream_readable');
+-var Writable = require('_stream_writable');
++var Readable = require('./_stream_readable');
++var Writable = require('./_stream_writable');
+ 
+ util.inherits(Duplex, Readable);
+ 
+diff --git a/lib/_stream_passthrough.js b/lib/_stream_passthrough.js
+index a5e9864..330c247 100644
+--- a/lib/_stream_passthrough.js
++++ b/lib/_stream_passthrough.js
+@@ -25,7 +25,7 @@
+ 
+ module.exports = PassThrough;
+ 
+-var Transform = require('_stream_transform');
++var Transform = require('./_stream_transform');
+ var util = require('util');
+ util.inherits(PassThrough, Transform);
+ 
+diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
+index 2259d2e..e6681ee 100644
+--- a/lib/_stream_readable.js
++++ b/lib/_stream_readable.js
+@@ -23,6 +23,9 @@ module.exports = Readable;
+ Readable.ReadableState = ReadableState;
+ 
+ var EE = require('events').EventEmitter;
++if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
++  return emitter.listeners(type).length;
++};
+ var Stream = require('stream');
+ var util = require('util');
+ var StringDecoder;
+diff --git a/lib/_stream_transform.js b/lib/_stream_transform.js
+index e925b4b..f08b05e 100644
+--- a/lib/_stream_transform.js
++++ b/lib/_stream_transform.js
+@@ -64,7 +64,7 @@
+ 
+ module.exports = Transform;
+ 
+-var Duplex = require('_stream_duplex');
++var Duplex = require('./_stream_duplex');
+ var util = require('util');
+ util.inherits(Transform, Duplex);
+ 
+diff --git a/lib/_stream_writable.js b/lib/_stream_writable.js
+index a26f711..56ca47d 100644
+--- a/lib/_stream_writable.js
++++ b/lib/_stream_writable.js
+@@ -109,7 +109,7 @@ function WritableState(options, stream) {
+ function Writable(options) {
+   // Writable ctor is applied to Duplexes, though they're not
+   // instanceof Writable, they're instanceof Readable.
+-  if (!(this instanceof Writable) && !(this instanceof Stream.Duplex))
++  if (!(this instanceof Writable) && !(this instanceof require('./_stream_duplex')))
+     return new Writable(options);
+ 
+   this._writableState = new WritableState(options, this);