Added Raptor Templates

[patrick-steele-idem]

For more information on Raptor Templates:

Raptor Templates is an extensible, streaming, asynchronous, high performance, HTML-based templating language that can be used in Node.js or in the browser. Raptor Templates was founded on the philosophy that an HTML-based templating language is more natural and intuitive for generating HTML.

• Github project page
• npm page
• Benchmarks

Additional Reading:

• Announcing the New Raptor Templates
• Raptor Templates versus Dust
• The JavaScript Templating Landscape