DB/Misc: Neltharaku

By untaught, closes #11031
DB/Loot: Voidwalker Minions are not meant to drop loot

By dr-j and Exodius closes #11012
DB/Misc: Correct some game event data

By Foldor, closes #10960
Core/Transports

* Fixed fall damage on transports while teleporting
* Fixed packets not being received by owner if sent by a controlled minion
* Fixed an issue when a teleporting transport would attempt to reload its creature passengers on old map

Closes #11140
Fixed typo in 39175ac68071a22233cb6828bfd8f2cd099861d7
Tools: Skip extracting already existing DBC files

Thanks to MacWarrior, closes #11061
Core/Transports: Fixed a few mistakes in GO passenger teleports (currently unused), thanks joschiwald for spotting them
Merge https://github.com/TrinityCore/TrinityCore