many-at-once api

[davidmarkclements]

It would be nice to be able to do this

var instream = fs.createReadStream('/usr/bin/more');
var passthru = new stream.PassThrough();
var outstream = fs.createWriteStream('/dev/null');

vstream.wrapStreams({
   source: instream,
   passthru: passthru,
   devnull: outstream
})

That makes it easier for me separate debug instrumentations and quickly add remove as needed