HIVE-9205: Change default tez install directory to use /tmp instead of /user and create the directory if it does not exist (Vikram Dixit K, reviewed by Prasanth J and Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.14@1648620 13f79535-47bb-0310-9956-ffa450edef68