Core/Scripts: Correct orders of parameters used in OnGroupChangeLeader script hook
Core/Config: Change CONFIG_EVENT_ANNOUNCE from int to bool

Also correct the description of BeepAtStart, it works in Windows as well
Core/NPCs: Refactor equipments

- creature_template.equipment_id deleted
- creature_equip_template.entry == creature_template.entry
- id field added to creature_equip_template -> PK(entry, id)
- id field in creature_equip_template starts at 1
- creature.equipment_id references id of creature_equip_template
- creature.equipment_id = 0 means no equipment at all (default 1)
- creature.equipment_id = -1 means pick a random equipment from creature_equip_template
- add equipment info to .npc info command

While table creature_equip_template got bigger in size, this system is easier to mantain and allows creatures to have a random template from a group of equipments
Core/RBAC: Add config option to set comma separated list of groups to add by default
- Allows to reduce the rows in rbac_account_groups
Core/Vehicles: Fix a few issues

- Fix position desync issue
Closes #9073
- Fix a crash related to passenger's EventProcessor, thanks to Shauren
- Fix crash related to charminfo
- Make compiler happier about certain things
DB/Misc: Mostly gossip stuff for various creatures.

Some scripts still need to be implemented.
Fixes quest Blood Oath of the Horde.
SQL Fix after 933381f
Merge pull request #9244 from Ascathor/master

SQL Fix after 933381f
Scripts/Spells: Fix Winter Veil PX-238

Ref #9238
Thanks @joschiwald
Core/ObjectMgr: Fix a logic error in GetEquipmentInfo

Thanks @Shauren
Core/Startup: Write current and expected maps version when there's a version mismatch
DB/Spell: Added an auto-kill spell if you go at No Man's Land in Isle of Conquest
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore