Core/PacketIO: Updated SMSG_CONTACT_LIST structure and opcode.
Updated CMSG_CONTACT_LIST opcode.
Updated CMSG_ADD_FRIEND opcode.
Updated CMSG_ADD_IGNORE opcode.
Updated CMSG_DEL_FRIEND opcode.
Updated CMSG_DEL_IGNORE opcode.
Updated CMSG_SET_CONTACT_NOTES opcode.
Updated SMSG_FRIEND_STATUS opcode.
Core/PacketIO: Updated SMSG_QUEST_CONFIRM_ACCEPT structure and opcode.
Updated SMSG_QUESTUPDATE_COMPLETE opcode.
Updated SMSG_QUESTLOG_FULL opcode.