Set up local date formats for Sorani Kurdish (ckb)

Including Iranian (Persian) and Islamic (Hijri) calendars.

Please note that the inclusion of the anglophone "dmy" and "ymd"
formats was by specific request of a Sorani Kurdish speaker. ckb
is allied to fa, which is one of many other languages to include
the anglophone formats alongside native ones. Please read the
discussions at the bug for more information.

Bug: 52009
Change-Id: Ib20e9185842a15fab6bbebd6e6e881654f276a0a
Merge "Set up local date formats for Sorani Kurdish (ckb)"