Bug 1254 - increase unit test coverage

- Fixed issue in PortTranslatorUtil#translatePortFeatures(PortFeatures)
  and PortTranslatorUtil#translatePortFeatures(PortFeaturesV10). Both
  methods were using PortFeatures constructor with arguments in wrong order.
  Added unit test for if correct properties are used as constructor arguments.

Change-Id: I3b5073338616f6de52e0c8403018cec01a53686d
Signed-off-by: Martin Bobak <mbobak@cisco.com>