Add recipe to integrate grunt tasks into gulp

Created by: geekflyer

Hi, I just found with the latest grunt version it's possible to run tasks without the grunt cli and without a gruntfile. That makes it possible to run grun tasks within gulp relatively seamlessly (and without a plugin) and I was able to remove gulp-grunt from our project, which caused some issues.

I'm just wondering if you would accept a pull request for a recipe on that topic (before I invest my time).