db: add data_type::deserialize(bytes) helper
db: add data_type::deserialize(bytes) helper

senseb/scylla,scylladb/scylla,rluta/scylla,avikivity/scylla,gwicke/scylla,acbellini/scylla,linearregression/scylla,kangkot/scylla,kjniemi/scylla,dwdm/scylla,phonkee/scylla,duarten/scylla,scylladb/scylla,kangkot/scylla,eklitzke/scylla,gwicke/scylla,glommer/scylla,linearregression/scylla,stamhe/scylla,justintung/scylla,victorbriz/scylla,senseb/scylla,scylladb/scylla,raphaelsc/scylla,respu/scylla,capturePointer/scylla,kjniemi/scylla,acbellini/scylla,asias/scylla,respu/scylla,raphaelsc/scylla,aruanruan/scylla,rentongzhang/scylla,rentongzhang/scylla,wildinto/scylla,duarten/scylla,phonkee/scylla,capturePointer/scylla,rluta/scylla,tempbottle/scylla,eklitzke/scylla,guiquanz/scylla,asias/scylla,avikivity/scylla,scylladb/scylla,acbellini/scylla,rluta/scylla,tempbottle/scylla,victorbriz/scylla,kjniemi/scylla,bowlofstew/scylla,dwdm/scylla,duarten/scylla,justintung/scylla,bowlofstew/scylla,linearregression/scylla,justintung/scylla,aruanruan/scylla,gwicke/scylla,stamhe/scylla,aruanruan/scylla,phonkee/scylla,glommer/scylla,capturePointer/scylla,glommer/scylla,shaunstanislaus/scylla,shaunstanislaus/scylla,bowlofstew/scylla,eklitzke/scylla,victorbriz/scylla,dwdm/scylla,wildinto/scylla,kangkot/scylla,guiquanz/scylla,shaunstanislaus/scylla,wildinto/scylla,stamhe/scylla,respu/scylla,rentongzhang/scylla,avikivity/scylla,asias/scylla,senseb/scylla,tempbottle/scylla,raphaelsc/scylla,guiquanz/scylla