Add Zookeeper input

Change-Id: I259741508529de984b6184c6b25434786278d82e
diff --git a/telegraf/files/input/zookeeper.conf b/telegraf/files/input/zookeeper.conf
new file mode 100644
index 0000000..205c030
--- /dev/null
+++ b/telegraf/files/input/zookeeper.conf
@@ -0,0 +1,2 @@
+[[inputs.zookeeper]]
+  servers = ["{{ values.address|default("127.0.0.1") }}:{{ values.port|default(2181) }}"]