DB/Creature: creature_model_info fix - Horde Guard

Closes #3352
Core/Scripts: Anub'Arak encounter changes and fixes.
Merge pull request #7731 from w1sht0l1v3/ToCr2

Core/Scripts: Anub'Arak encounter changes and fixes.
DB/Gameobject: Update Trial of Grand Crusader door info.
Update src/server/game/Events/GameEventMgr.cpp

Change name ot the table (wrong name)
Merge pull request #7734 from AFROM/patch-1

Update src/server/game/Events/GameEventMgr.cpp
Core/ToCr: Several fixes.

Fix floor animation when destroyed.
Add spawns for Highlord Tirion Fordring,Argent Mage and Portal to Dalaran.
Remove Db spawn of Highlord Tirion Fordring.
Correct tribute chest spawn location.

Fix sql names for last commits.
Core/Scripts: Reliquary of Souls: fix encounter start and essence phases.
Core/Mail: Fix merging of items taken from mail leading to invalid entries in item_instance
Core/ItemTemplate:

Rename unk0 column.
Weapons have special sounds on impact. This column is used to override these sounds by specifying another subclass. For example an item with misc subclass can sound like a stave on impact by overriding the subclass here.
Core/Spells Scroll of Recall
Merge pull request #7747 from Elron103/pull-requests

Core/Mail: Fix merging of items taken from mail leading to invalid entries in item_instance
Scripts/Ogri'La: Add support for quest "Bomb Them Again" and all related

* Sniffed spell support for Knockdown Fel Cannon: Choose Loc, Knockdown Fel Cannon: The Aggro Check, Knockdown Fel Cannon: The Aggro Burst, Knockdown Fel Cannon: The Aggro Check Aura, Trhow Bomb and Fel Flak Fire
* Sniffed spawns support, but only for quest related creatures and gos, no area patrols/spawns involved
* Achievement support for Blade's Edge Bomberman and Fa-la-la-la-Ogri'la
* Full DB support based on sniffs, all that can be done in SAI and not in *cpp is converted
Credits: The SAI script is based on Warpen work, thanks to Subv for proposing fix for Fel Flak Fire /and helping/ and DDuarte for helping with conditions

Closes:

Signed-off-by: Nay <dnpd.dd@gmail.com>
Scripts/Ogri'La: Change credit target type from invoker to invoker party

Signed-off-by: Nay <dnpd.dd@gmail.com>
Scripts/Skettis: Fires Over Skettis quest support

* Include SAI/Spawn and spell support, also achievement support for "Bombs Away"
Credits: Based on Warpten script and Nelegalno/shlomi1515 updates

Signed-off-by: Nay <dnpd.dd@gmail.com>
DB&Scripts: Corrections to pull request #7750

Closes ##7750
Merge pull request #7753 from Faq/ScrollOfRecall

Core/Spells: Scroll of Recall
Core/Commands: Added a command that shows what cheat commands you have active

Closes #7721

(Modified)
Core/Calendar: Fixed breaking calendar event UI after relogging
Scripts/Commands: Fixed crashes in unstuck command

Closes #7754