Added a command line option(--enable-bt) to enable KWSys stack
trace signal handler. For SM XML, Python, and Batch ctests enable
the stack trace handler by the new command line option.

Added a test to report system info including OpenGL and MPI
versions to aid remote debugging for unfamiliar dashboard
systems.

Change-Id: Icdea9d423a6bfbf7d960c4d691ddb60c03032143