Core/Quest: implement Quest Tracker
Merge pull request #13353 from ShinDarth/335_quest_tracker

Core/Quest: implement Quest Tracker
Core/Spells: Trigger extra attacks on proper target

Ref #6892

Closes #11001
Core/Spells: Grounding Totem: - correctly magnet spells and dies - let missile spells fly on it and destroys all spells during the travel time of first one

Thx @amsjunior1

Closes #13147
Fixes #5611
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore into master_revamp