DB/Hotfixes: Added TaxiPathNode
DB/Hotfixes: Fixed some texts in broadcast_text that had double quotation marks
Core/Misc: First part of renaming to Blizzard's names
DB/Misc: Cherry Picking missing commits

Some fixes which I pushed to 3.3.5 which are also valid for 6.x.x but have been missed
Tools/Map extractor: Restored default configuration to make maps smaller at the cost of height data precision
Core/Guilds: Fifth part of converting int to bigint guids in database
Fixed SQL typo in characters_database.sql
Merge pull request #13462 from marc0303/6.x

Fixed SQL typo in characters_database.sql
Core/Opcodes: Support opcodes with the same ids and different direction

- Split enum Opcodes in enum OpcodeMisc/OpcodeClient/OpcodeServer
	- Old MSGs are temporarly in the enum OpcodeClient
- Split _internalTable of OpcodeTable in two tables, one for CMSG opcodes and another for SMSG opcodes

Note: most added static_cast<OpcodeX> will be removed once WorldPacket
is split in two classes (ServerPacket/ClientPacket, see #13434)
Core: Fix build in some compilers by calling proper cctor of ObjectGuid
Core/Entities: Changed a few lowguid uses to ObjectGuid::LowType
Scripts: replaced various Location struct defines with proper Position or G3D::Vector3
Core/Entities: Changed object lowguid to uint64
DB/Graveyards: Added a comment field to describe the graveyards in `graveyard_zone`
DB/GameObjects: Updated `gameobject_template` to 5.4.7.18019
Misc: Fixed sql import, added new changes to world_database.sql, removed duplicate definition of ObjectGuidGenerator<HIGHGUID_PET>
SQL: Changed creature_template.family to be unsigned
DB/Creatures: Changed the default char value from 100 to 200 for some columns
DB/Creatures: Updated creature levels, factions & exp values up to 5.4.7.18019
Merge pull request #13455 Rochet2/ah

AH related fixes

(cherry picked from commit d924553002339a07544063784acd6241ce469986)