[autotest] Add a harness for running dynamic suites from your workstation

To enable development on the dynamic suite infrastructure.

BUG=None
TEST=./server/autoserv test_suites/dev_harness

Change-Id: Ib2a63d19f919f5e256f0a36dbca33e1b52f92875
Reviewed-on: https://gerrit.chromium.org/gerrit/13240
Commit-Ready: Chris Masone <cmasone@chromium.org>
Reviewed-by: Chris Masone <cmasone@chromium.org>
Tested-by: Chris Masone <cmasone@chromium.org>
Reviewed-by: Scott Zawalski <scottz@chromium.org>
7 files changed