Add CL-bench

From Eric Marsden at
http://emarsden.chez.com/downloads/cl-bench.tar.gz.

Checked in as is.
2 jobs for rtoy-issue-87-add-cl-bench in 11 minutes and 29 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Test
passed linux-runner #4233
linux

00:06:05

passed osx-runner #4234
osx

00:11:28