DB/Gameobjects: Added "a few" missing gameobjects
Core/Misc: Fix uninitialized values

Fix Position members not being always initialized.
Valgrind log:
 at : Position::NormalizeOrientation(float) (Object.h:388)
 by : Position::SetOrientation(float) (Object.h:315)
 by : Position::Relocate(Position const&) (Object.h:310)
 by : spell_ulduar_stone_grip::spell_ulduar_stone_grip_AuraScript::OnRemoveVehicle(AuraEffect const*, AuraEffectHandleModes) (boss_kologarn.cpp:592)
DB/SAI: Fix Arcane Disturbances after quest_?_scripts removal

By untaught, closes #5412
DB/Gameobjects: Added spawns on Development Land
DB/Gameobjects: Updated the WDBVerified of the gameobject templates of a4487f8f58d6e19e0499f4a612e66819ae4c9b22 -.-
DB/SAI: Fix few startup errors after 96b3df2
Core/SmartScripts: SMART_ACTION_EQUIP prevent to false errors
Merge pull request #11823 from MitchesD/core_sai

Core/SmartScripts: SMART_ACTION_EQUIP prevent to false errors
DB/Creatures: Added some data for dataless NPCs
Core/Chat: Fix valid chat links being handled as invalid

Fix a case where valid chat links would have been handled as invalid.
This happened if these conditions were true:
- the link was a profession and the link name started with the same name of the profession, like spell id 61120 in esES locale "Inscripción de la tormenta de maestro" with profession name "Inscripción"
- the profession name was the same for more than 1 locale available, like esES and esMX, or enUS and enGB

Restore memmove() instead of memcpy() wrongly replaced in 791130f6faf6294d2cb27bec409d7b4ee855243f , it's unsafe to use memcpy() with overlapping memory regions.
Core/Spells: fixed Throw Shield Visual and Clone Weapon
Merge remote-tracking branch 'upstream/master'