Core/Opcodes: 11 new opcodes
Core/Opcodes: Enable handlers for some opcodes added in previous commit
Update SMSG_DURABILITY_DAMAGE_DEATH to 4.x.

Auras can change durability damage (Reinforce guild perk) and need to send the updated value to the client.
Core/Chat: Fixed whispers and emotes handling. Added missing chat CMSG.

Ref #4824
Revert "Update SMSG_DURABILITY_DAMAGE_DEATH to 4.x."

This reverts commit bbdd2ee2737b3abf8e4eef795f53c4be90b71d9b.
Core/Opcodes: Few more opcodes, enable handlers;

Send spell id in SMSG_RESURRECT_REQUEST
Ref #4824
4.2.2 More opcodes, enable handlers and update structure for SMSG_INSTANCE_LOCK_WARNING_QUERY and SMSG_COMPLAIN_RESULT

Ref #4824
Core/Groups: Fix structure of CMSG_GROUP_INVITE and SMSG_PARTY_COMMAND_RESULT

Closes #4824
Core/Opcodes: Add some opcodes from WPP
Core/Opcodes: More opcs from WPP
Fixed Channel message handler. Enabled and checked some channel CMSG handlers.
Merge pull request #4923 from DrakeFish/4x_2

4.x - Fixed channels support.
Core/Movement: Fixed forced speed changes.
Merge pull request #4925 from DrakeFish/4x_2

4.x - Added forced speed changes.
Core/Opcodes: 4 new opcodes

Signed-off-by: Gyx <2359980687@qq.com>
Core/Movement: Added most spline speed changes.
Core/Movement: Added a cs for SMSG_MOVE_SPLINE_ENABLE/DISABLE_COLLISION.
Core/Movement: Fixed SMSG_MOVE_KNOCK_BACK structure.
Merge pull request #4926 from Gyx/4.x

Gyx 4.x update
Merge pull request #4934 from DrakeFish/4x_2

4.x - Added most spline speed changes. (and others)