Converts Azerbaijani and Russian characters in post/page slugs to Latin characters
Tested up to: Wordpress v5.0
максим - %d0%bc%d0%b0%d0%ba%d1%81%d0%b8%d0%bc (before)
максим - maksim (after)
əhməd - %c9%99hm%c9%99d (before)
əhməd - ehmed (after)
Rewritten and inspired from Az to Lat and Cyr to Lat Wordpress plugins