Extend the Test Subject

Adds in additional information about the TestSubject, for parsing with
Earl, as described in Issue #29.  Also adds in the command-line capability, if you want to add in the information via command line.

There are default values for this -- shown in testng.xml.  

Change-Id: I898eb0093433a2fb42c4403bcb0a3b459cb64fc0
Signed-off-by: ttsanton <ttsanton@us.ibm.com>