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
diff --git a/daemon/mgmt/internal-face.hpp b/daemon/mgmt/internal-face.hpp
index 7798143..4b16cc1 100644
--- a/daemon/mgmt/internal-face.hpp
+++ b/daemon/mgmt/internal-face.hpp
@@ -12,11 +12,14 @@
 
 namespace nfd {
 
+class FibManager;
+
 class InternalFace : public Face, public AppFace
 {
 public:
 
-  InternalFace();
+  explicit
+  InternalFace(FibManager& manager);
 
   // Overridden Face methods for forwarder
 
@@ -44,6 +47,7 @@
   // onConfig(ConfigFile::Node section, bool isDryRun);
 
   std::map<Name, OnInterest> m_interestFilters;
+  FibManager& m_fibManager; // for mock only
 
 };