Added a suite runner that outputs a CSV with runtimes and log files for ...

Please consider accepting this commit to hive-testbench.  Here I added a suite runner that outputs a CSV with runtimes and log files for each query.  I also added a .gitignore file to ignore artifacts which should not get checked in.

Also note there is a commit to make the build osx compatible for tpcds.

There is also a commit that makes tpch osx compatible.