performance

Merge pull request #11 in HDFFV/performance from ~LRKNOX/performance_lrk:HPF-23-add-chk-files to master

* commit '16b47eb26860fd7bd3041c498cdc0fe79dfc3a50':
  Change names for chklog and chkexe files to match what runs so that python scripts can check creation times.
  First attempt to ad .chklog and .chkexe files when running make check.