Add templates for pantheon-terminal.

Hello!

Thanks so much for creating this project, my eyes would bleed without base16.

I just started using Elementary OS and was trying to get base16 set up for pantheon-terminal. I made the templates and built them for myself, but I figured I might as well share them. They are pretty barebones but they are working for me (so far)!

You can see how I'm using it in [one of my dotfiles](https://github.com/charlesbjohnson/dotfiles/blob/77a5691796f970aaf1543b1204cc574c8bcd85f7/config/fish/config.fish#L18-L19) and below is a screenshot for good measure.

![screenshot from 2014-08-12 15 40 03](https://cloud.githubusercontent.com/assets/4823640/3896587/a38516aa-2259-11e4-91db-f900dd8f1e79.png)

Thanks again!