fw: Added FaceId to Face conversion method

Change-Id: I7b751cd51e138875929e7c680420070be3ce15c7
mgmt: Initial fib manager with support for fib/add-nexthop

fw: Added FaceId to Face conversion method

Linked InternalFace's sendInterest to FibManager's
onFibRequest

refs: #1138

Change-Id: I0b18f2d41c9ba9d8749c586e3553b51a1e8b1269
mgmt: loosened coupling between FibManager and InternalFace

Implemented InternalFace.setInterestFilter to loosen
coupling

refs: #1138

Change-Id: Ie58daed35bc3613398c8d3fc1de8b796e29907b8
mgmt: improved interest filter matching and bug fixes

tests/mgmt: added test fixtures to simplify unit testing

Added control response Data signing
Fixed control response payload parsing
Simplified fib-manager unit test assumptions
Expanded internal-face unit tests

refs: #1138

Change-Id: Ibe5d95ab9c42f890c0691c9040e4ae792e598974
mgmt: improved control response identification and bug fixes

tests/management: extended unit tests for new response types

Change-Id: Iebed4b3172ff6a07b71021a0ffa4870013d86f48
refs: #1138
mgmt: moved signing into AppFace, code streamlining, and bug fixes

tests/management: improved callback validation

Fixed bad shared_ptr NULL checks
Fixed bad iterator decrement in InternalFace.sendInterest
Removed semi-useless constants in FibManager
Clarified ControlResponse text messages

Change-Id: Ic327a0b6b57827e401c7c3115d0ee92bae996a34
refs: #1138
Merge branch for issue #1138

Change-Id: Id4c2ddb3707983cc07177ebd834f8fb3a40f9606