Adding additional jars to livy interpreter within zeppelin

[#1]

livy documentation states to add jars with the interpreter key value livy.spark.jars. This is applicable when running livy interpreter in yarn-cluster mode only (livy.spark.master). This can be done in local or yarn-client mode as well however by adding the jars to the /usr/hdp/<version>/livy/repl-jars directory. This will add the jars to the spark submit command run by livy when executing within a notebook in modes other than yarn-cluster.

[#2]

yarn-client is not supported as per new guidelines, only yarn-cluster mode is supported within livy interpreter from Zeppelin