Make createVolume return struct instead of ~7 values
Make createVolume return struct instead of ~7 values

aburluka/external-storage,humblec/external-storage,clarkhale/external-storage,humblec/external-storage,virtuozzo/external-storage,humblec/external-storage,dhirajh/external-storage,childsb/external-storage,kubernetes-incubator/external-storage,clarkhale/external-storage,childsb/external-storage,childsb/external-storage,virtuozzo/external-storage,aburluka/external-storage,virtuozzo/external-storage,dhirajh/external-storage,kubernetes-incubator/external-storage,aburluka/external-storage,clarkhale/external-storage,aburluka/external-storage,kubernetes-incubator/external-storage,dhirajh/external-storage,dhirajh/external-storage