add param to get_acls to include/exclude ephemeral znodes

$ zk-shell localhost:2181
Welcome to zk-shell (0.93.2)
(CONNECTED) /> create member_ '' true true
(CONNECTED) /> ls
member_0000000108 zookeeper
(CONNECTED) />

$ zk-shell localhost:2181 --run-once "get_acls / 0"
/: ['WORLD_ALL']
/zookeeper: ['WORLD_ALL']
/zookeeper/config: ['WORLD_ALL']
/zookeeper/quota: ['WORLD_ALL']

$ zk-shell localhost:2181 --run-once "get_acls / 0 true"
/: ['WORLD_ALL']
/member_0000000108: ['WORLD_ALL']
/zookeeper: ['WORLD_ALL']
/zookeeper/config: ['WORLD_ALL']
/zookeeper/quota: ['WORLD_ALL']

Signed-off-by: Raul Gutierrez S <rgs@itevenworks.net>