More packages for Chinook.

I was trying to package hunspell-ar for Chinook so I ended up packaging:
* hunspell (libhunspell and its development headers)
* enchant (hunspell and ispell providers but I'll disable ispell soon)
* hunspell-ar
* dictionaries-common and dictionaries-common-dev (hunspell-ar depends on them)

As for dictionaries-common and dictionaries-common-dev, they are different than the Debian ones. Yes I'm using the same source but I'm only providing the bits related to myspell. I didn't include the policy too.

him-arabic is also available as well as a few Arabic fonts: