Add Arabic font Kacst One
user
```ruby
class FontKacstone < Cask
  url 'http://downloads.sourceforge.net/project/arabeyes/kacst_fonts/kacst_one_5.0.tar.bz2'
  homepage 'http://projects.arabeyes.org/project.php?proj=Khotot'
  version '5.0'
  sha256 '1b016f49f99de16a65dcd990f229e729e6c4c6df02b23409771f6e27b69186a7'
  font 'KacstOne.ttf'
  font 'KacstOne-Bold.ttf'
end
```
assistant