Core/PacketIO: Updated CMSG_USE_ITEM structure and opcode.
Updated CMSG_AUTOBANK_ITEM opcode.
Updated CMSG_AUTOEQUIP_ITEM opcode.
Updated CMSG_AUTOSTORE_BAG_ITEM structure and opcode.
Updated CMSG_AUTOSTORE_BANK_ITEM structure and opcode.
Updated CMSG_DESTROY_ITEM opcode.
Updated CMSG_SPLIT_ITEM opcode.
Updated CMSG_SWAP_INV_ITEM structure and opcode.
Updated CMSG_SWAP_ITEM structure and opcode.