Modified TPCDS schema and queries to match Impala TPCDS kit

Queries were taken from https://github.com/cloudera/impala-tpcds-kit

Change-Id: Ib86606eafb8383d480af6edc62a9ac3c13b849ff
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/3733
Reviewed-by: Lenni Kuff <lskuff@cloudera.com>
Tested-by: jenkins