Core/Auras: Fixed a crash happening when different vehicle auras from the same caster stacked on one target

Closes #10050
DB/Misc: Cleaning db
Core/Scripting: Add spell script for spell 55945 Spectator - Cheer Trigger
DB/creature_text: Add missing text for Amphitheater Vendor
Core/Scripting: Add spell script for vendor bark trigger
DB/waypoints: Add waypoints for two Amphitheater Vendors
DB/Misc: restore lost data
DB/Misc: Proper respawn time for a lot of mobs and delete incorrectly spawned mobs
Core: Fix warnings and some cleanup
Core/GameEvent: Add log for game_event_creature/game_event_gameobject contains creature/gameobject not found in table creature/gameobject table
DB/Creature: Fix pathed movement errors.
Core/Scripting: Updates to Dark Portal Instance Scripting
Core/Scripting: Renamed Dark Portal scripts to The Black Morass
DB/instance_template: Update scriptname for map 269
Core/Scripting: Update Boss Akilzon Script to use Events
Core/Scripting: Fix previous commit
Core/WaypointMovementGenerator: Make error message more useful.
Core: Fix some error messages, more useful, less engrish.
Core/Movement: Prevent dynamic changes of movement flags for charmed creatures

Closes #10075
Closes #10079
Core/Vehicles: Fixed crashes in StopCastingCharm happening when unit was attempting to enter 2 vehicles at the same time

Closes #9293
Closes #9618