lisp/ox.el: Add Persian/Farsi to org-export * Add Persian/Farsi translation to the org-export-dictionary variable at lisp/ox.el. - Persian/Farsi is the native language to ~ 110 million speakers worldwide (mostly in Iran, Afghanistan, Tajikistan, Uzbekistan, and Iraq). - "fa" abbreviation stands for "Farsi" according to [[ISO 639-1][https://en.wikipedia.org/wiki/ISO_639-1]]. - the ```diff``` file and the ```patch``` are enclosed in the mail attachment. Sincerely and Peace. shosseinib