Instance/Halls of Reflection/Lich King event: Implement loot chest in heroic mode and rename chest variables.
Merge pull request #11250 from xjose93/HoR

Instance/Halls of Reflection/Lich King event: Implement loot chest in heroic mode and rename chest variables.
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore into ghbb