Make use of obelisk_codec write accessors
Make use of obelisk_codec write accessors

cancoin/libbitcoin-explorer,GroestlCoin/libgroestlcoin-explorer,libtetcoin/libtetcoin-explorer,cancoin/libbitcoin-explorer,libmetrocoin/libmetrocoin-explorer,tuomassiren/libbitcoin-explorer,libmetrocoin/libmetrocoin-explorer,GroestlCoin/libgroestlcoin-explorer,GroestlCoin/libgroestlcoin-explorer,tuomassiren/libbitcoin-explorer,libtetcoin/libtetcoin-explorer