DB/Quest: Once More Unto The Breach, Hero progression

By @dr-j fixes #10940
DB/SAI: The Great Hunter's Challenge

By @Polkic fixes #11003
Scripts/HallsOfReflection: Revert 3ffbd27cddbd96d9736e7b22a286cef8f4ab2174

Revert 3ffbd27cddbd96d9736e7b22a286cef8f4ab2174 and PR #10985 , this change doesn't fix any issue and instead breaks the logic of the instance event.
Scripts/HoR: fixed infinite spawn, added some missing spell target conditions and fixed codestyle

Closes #10754
DB/Update: Quest credit fix-up
Fix some db errors ... (Yippie-Ya-Yeah)
Merge branch 'master' of github.com:TrinityCore/TrinityCore into mmaps_rw