CSIT-405: Honeycomb test update and cleanup

 - update suite setup and constants to allow test runs again
 - cleanup basic interface keywords
 - cleanup L2-fib test data
 - add "continue on failure" keyword to some partially failing tests
 - add teardown to all suites, restarts honeycomb if suite had test failures
 - fix minor PEP-8 violations in Topology.py

Change-Id: Ic5b434af71f77855f81461b280299b8318932c5a
Signed-off-by: selias <samelias@cisco.com>