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

refs: #4843

Change-Id: I2b200518a57b21d66eae4360166afda31c3bf11b
diff --git a/daemon/face/transport.hpp b/daemon/face/transport.hpp
index 3f00424..8bbfe86 100644
--- a/daemon/face/transport.hpp
+++ b/daemon/face/transport.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -37,6 +37,10 @@
 class Face;
 class LinkService;
 
+/** \brief identifies an endpoint on the link
+ */
+typedef uint64_t EndpointId;
+
 /** \brief indicates the state of a transport
  */
 enum class TransportState {
@@ -113,10 +117,6 @@
 class Transport : protected virtual TransportCounters, noncopyable
 {
 public:
-  /** \brief identifies an endpoint on the link
-   */
-  typedef uint64_t EndpointId;
-
   /** \brief stores a packet along with the remote endpoint
    */
   class Packet