* Core/Misc Update all locales table structure to simple system. Port from TrinityCore
Co-Authored-By: Winfidonarleyan <dowlandtop@yandex.com>
* Core/Db/Gossip Update structure gossip_menu and gossip_menu_action to actual TrinityCore
* Core/DB Update Broadcast system to actual TC
* Core/Mail: implement Quest Mail Sender
* Core/Quest Split quest template locales
* Core: Achievements warning if GM mode enabled
Added a warning ingame and in console when you're a GM testing achievements (else it was confusing).
Added an extra type check in UpdateAchievementCriteria, ported from TrinityCore.
