Scripts/TheBlackMorass: Fix first 7 rifts spawn timings

Partially revert 7e76ab97f895da1320106fad28e31d6b34c15443 to properly spawn first 7 rifts. Also allow only 1 EVENT_NEXT_PORTAL event at time.
Db/Disable: Sibling Rivalry credit

By @untaught fixes #11020
Scripts/Ahnkahet: Prince Taldaram rewritten to BossAI

Closes #10993
Core/Misc: Ugh.. Fix recent commit that broke the OnHeal hook :disappointed_relieved:
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore
Fix build.
Fix non-pch build.
Just, because this typo was annoying...
Merge pull request #11045 from Baeumchen/patch-1

Just, because this typo was annoying...
CMake: Fix typo

Running cmake threw a warning because of this.
Core/Transports

* Rewritten path generation, now uses splines - timers are a lot more accurate now
* Implemented stopping transports
* Implemented spawning transports in instances
* Implemented spawning gameobjects as transport passengers
* Transport passengers are now stored in creature/gameobject table using gameobject_template.data6 from transport's template as map id
Build fix
Build fix
Build fix
Fixed sql files for ce55647c415b710c6b440d96c2f26ebbc06c1d6e
DB/SAI: Primordial Drake Egg/Hatchling

Fixes #11051 by @dr-j and @untaught
Corrected the graveyards for Onyxia's Lair instance.
Because Github commiting sucks.
Core/Creatures: Removed remains of creature_transport table
Build fix