clickhouse-keeper-client: add flag to allow rm & rmr command non-interactive

[sanadhis]

I would like to be able to script the deletion of some trees/nodes in clickhouse-keeper
let's say using shell script:

nodes=(
    /clickhouse/tables/aabbcc/0/replicas/replica-0
    /clickhouse/tables/aabbcd/0/replicas/replica-0
    /clickhouse/tables/aabbce/0/replicas/replica-0
    /clickhouse/tables/aabbcf/0/replicas/replica-0
)
for node in "${nodes[@]}"
do
  echo "Deleting tree recursively"
  clickhouse-keeper-client -h ${keeper-client-host} -p 2181 -q "rmr $node"
done

problem is this is not possible now because rm & rmr commands are both interactive or requiring confirmation.

Would be awesome if we can have flag to make it non-interactive, such as rmr -y $node