inbuilt templates

[jabooth]

landmarker.io should ship with all the templates that menpo knows about:

https://github.com/menpo/menpo/blob/master/menpo/landmark/labels.py

This will heavily reduce the need for users to write there own templates.

It would be nice if the user was able to download a copy of any inbuilt template too, so they can tweak a template to their own needs.

[jabooth]

dependent on menpo/menpo#616

[lirsacc]

Download of templates is available for any backend which loads them as Template objects (i.e not the landamrker server). All it has to do is expose a downloadTemplate function which takes the name of the template as it's first argument