NLSR

The existing TestFaceController suite has two test cases: FaceCreateCanonize and FaceCreateFailure.

I don't know what suppose to be done in the second one, but if it is just about canonization failures than the following comment applies to it as well.

It is not NLSR's job to test code in ndn-cxx library. The code is already covered by library's unit tests. If you think something is missing from tests, please submit code to ndn-cxx directly, but not implement tests inside NLSR.

As of right now, master branch does not pass unit tests on some platforms. This is the reason I'm marking this issue as high priority.