Scripts/Eye of Eternity: Remove some flags, fix some timers and some misc

* Starting timers were a bit slower
* Destroy platform proper timing for drake casting mount spell to player (trigger)
* Remove IMMUNITY_PC flag after Iris is triggered (thx to Expecto) and readd it on evade
* Remove NOT_SELECTABLE flag since shouldn't be present at starting event
* Fix misc of id of Static Field added to LOS attributes
DB/Quests: Fixes To Legion Hold (10563,10596). Closes #9153,  #6909

Thanks @Kirkhammett for the initial work.
Core/Vehicles: Defined known seat flag VEHICLE_SEAT_FLAG_IS_USING_VEHICLE_CONTROLS
Core/GameObjects

* Removed long deprecated code for mining nodes (multiple uses, artifact of TBC)
* Made fishing pools generate use count only on spawn (and respawn) instead of randomizing use count on every fishing attempt - prevents early despawning in some cases
Scripts/Eye of Eternity: Rewrite Arcane Barrage mechanic

* Note that even after last changes happens I'm not sure exactly how the timers are controlled. The wipe chance should be a lot smaller now.. Any further change I can think of is beyond what I see. The main problem is currently. In theory there is chance, If timers get to be same with delay lesser than 2 seconds and if target randomisations select same target for shit out of luck reason. And if starting different timers were matching you can be hit atleast 2-3 times and on 25 mode maybe more. The timers are not with fixed difference for sure is all I know.
DB/Misc:

Add Missing Sunreaver Guardian Mage (thx aokromes) Closes #9311
Add SAI for Mission: The Abyssal Shelf (thx Kirkhammett)
DB/SAI: Add SAI for quest "A Worthy Weapon"

Closes #9250
SQL: Fix typo
Core/Spells: Improved facing setting for creature casts
Merge branch 'master' of git://github.com/TrinityCore/TrinityCore
DB/Gameobject: Add missing Gameobject

Closes #8948
DB/Waypoints: add waypoints for Doomsayer Jurim, thx Kelsarhu

Closes #8958
DB/Quest: fix some questrequirements in BE start zone by Praxious, Closes #9156

Commit: fix naming on previous file, fix typo in 2013_03_04_00
DB/SAI: add SAI for quest: The Admiral Revealed (12852)

Closes #9094
Commit: its monday.......
Merge branch 'master' of git://github.com/TrinityCore/TrinityCore