enum_set: Add mask getter
enum_set: Add mask getter

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