naga v1.0

Naga is a terminal implementation of snake game. URL: http://github.com/anayjoshi/naga.
This is a first time addition of this project in homebrew. The project has existed for quite some time, the github repository was refurnished today.
You can update this one - if you push back to the same branch on Github, it'll update the pull request without needing a new one. Just let me know in a comment when you do.