Core/Packets: Add GetOpcode() methods to ClientPacket and ServerPacket
Core/Packets: Fix player movement client packets
Core/DataStores: Updated all remaining dbc/db2 except Item.db2, Item-sparse.db2

Signed-off-by: Nayd <dnpd.dd@gmail.com>
Core/DataStores: Updated AreaTable.dbc

Signed-off-by: Nayd <dnpd.dd@gmail.com>
Core/DataStores: Updated Item DataStores

Signed-off-by: Nayd <dnpd.dd@gmail.com>
Core/Packets: fixed QueryCreatureResponse
Core/Movement: Some fixes to player movement (SMSG_PLAYER_MOVE)
Core/PacketIO: Renamed a few packet classes to match client names
Merge branch 'Trinity6.x' into brecky6.x