Summary:
- Setup Afrikaans (AF) language
- Added Numeral Dimension
Some of the paths have changed, and some extra files were necessary, after
basing initial work off 24d3f19976
I followed some of the Numeral examples from Dutch as well as Hungarian,
since Afrikaans and Dutch have some similarities.
One thing was examples for numbers having the number as an example, which I
didn't do here, because I'm not sure it's necessary.
Pull Request resolved: https://github.com/facebook/duckling/pull/422
Reviewed By: awalterschulze
Differential Revision: D18348617
Pulled By: patapizza
fbshipit-source-id: b8c4218629c264b48d6f2cecc4c23e2e281a64da
922d06b6e4