Add Honeycomb bridge domain management tests

JIRA: CSIT-41, CSIT-42, CSIT-43

 - add test cases for Honecomb bridge domain management
 - add keywords used by these tests
 - prefix the names of Honeycomb test suites with numbers, so that they
   execute in a specific order
 - moved suite teardown with "Stop Honeycomb service" to bridge domain
   suite

Note: Due to time constraints, the Honeycomb service cannot be restarted
between executions of individual Honeycomb test suites. Therefore
Honeycomb will be setup in the first test suite and shut down after the
last one.

Change-Id: I36b7f8335e5ba54985da5bd83730cf856d5ab48b
Signed-off-by: selias <samelias@cisco.com>