Added smart package for Blade - A templating engine, inspired by Jade

Added smart package for Blade - A view templating engine, inspired by Jade and Haml.

https://github.com/bminer/node-blade

Please feel free to add to the Meteor project at your convenience.  Let me know if you have any questions / concerns.  I know that the Package API isn't quite finished yet, so I'd be willing to make changes, as needed.