added 5 colorschemes

Chris,
Thanks for merging the Prism templates, I'm honoured. 
I honestly don't know if these colorschemes will fit in with yours, and they already have [a nice home](http://atelierbram.github.io/syntax-highlighting/atelier-schemes) ..., but I leave it up to you of course: do with it what you want, pick one, two, all, none: it's all good.
Bram de Haan