Bug 2021 - Continuous WARN log nodeConnector creation failed at node: OF|00:00:xx...

Bug 2021 - Continuous WARN log nodeConnector creation failed at node: OF|00:00:xx:xx:xx:xx:xx:xx

This fixes the bug in ToSalConversionsUtils.actionFrom() that mistakenly
passed an AD-SAL-style NodeID to a conversion utility (fromNodeConnectorRef)
that was expecting a MD-SAL-style NodeID.

Patch 8: Add unit test to exercise code path that exposes the issue

Change-Id: Icc107bd785d6558a3351f139c1b13b8737b56ae7
Signed-off-by: Flavio Fernandes <ffernand@redhat.com>
Signed-off-by: Colin Dixon <colin@colindixon.com>