face+table: move EndpointId typedef out of Transport and use it in table

refs: #4843

Change-Id: I2b200518a57b21d66eae4360166afda31c3bf11b
diff --git a/daemon/table/fib-nexthop.cpp b/daemon/table/fib-nexthop.cpp
index e456c15..2b946c5 100644
--- a/daemon/table/fib-nexthop.cpp
+++ b/daemon/table/fib-nexthop.cpp
@@ -28,7 +28,7 @@
 namespace nfd {
 namespace fib {
 
-NextHop::NextHop(Face& face, uint64_t endpointId)
+NextHop::NextHop(Face& face, EndpointId endpointId)
   : m_face(&face)
   , m_endpointId(endpointId)
   , m_cost(0)