Import ci_reporter

The ci_reporter gem can output junit xml. Jenkins can natively display
the junit reports providing timing/trending data for each test case.

The presence of the setting, 'gather_junit', will enable collection of
the junit xml created by the ci_reporter on the buffet slaves.

Change-Id: Ieebfa8c0afd87271732e917de8abacda86cbd9a6
Reviewed-on: https://gerrit.causes.com/27663
Reviewed-by: Greg Hurrell <greg@causes.com>
Reviewed-by: John Skopis <john.skopis@causes.com>
Tested-by: John Skopis <john.skopis@causes.com>