Add Farsi support

Add 'fa' entry to all the grd files.
For *locale_settings*, create new xtb files for Farsi (copied from Arabic).

Also, pulls in ICU @r=58904 (with Farsi data).

locale_settings_fa.xtb has a lot of UI dimensions that may not work
well in Farsi. We need LQA to take a look at them.

terms_FOO.html is not yet available for Farsi as well as Amharic and Swahili. Tentatively, use
terms_en.html. 

BUG=45505
TEST='chrome --lang=fa' on Windows should bring up Chrome in Farsi. 'LANGUAGE=fa chrome' should do the same on Linux. (on Ubuntu,  'language-pack-gnome-fa' and 'language-pack-fa' have be installed to get Chrome in Farsi with the UI mirrored).


Review URL: http://codereview.chromium.org/3296013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@58998 0039d316-1c4b-4281-b951-d872f2087c98
22 files changed