add integration test for HDInsight installer script
The HDInsight installer script failed due to an uncaught external issue. We need to add an integration test for this to catch if this happens again.
We should be able to simply spin up an hdp cluster without cdap on Ubuntu, run this script on a node, and then run a minimal integration test to ensure CDAP is up.
"HDInsight Provisioning Test" job created, which simulates an HDInsight edgenode, and fully runs the install.sh script. Scheduled to run every weekday, alternate branches. Branches test CDAP release (3.5, 4.0, 4.1). Each run simulates HDI 3.4 and 3.5. Can adjust the schedule as necessary