mgmt+core: Moving SegmentPublisher to core/ and removing KeyChain from nfd::AppFace

This change ensures interface uniformity between nfd::AppFace and
ndn::Face and allow now templated version of SegmentPublisher to be used
with either.

Change-Id: I82e29528b13b37bd2ae27ef47db30e8c87c15a38
Refs: #1749
diff --git a/daemon/mgmt/manager-base.cpp b/daemon/mgmt/manager-base.cpp
index 60f3bc9..ca1e00d 100644
--- a/daemon/mgmt/manager-base.cpp
+++ b/daemon/mgmt/manager-base.cpp
@@ -1,11 +1,12 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014  Regents of the University of California,
- *                     Arizona Board of Regents,
- *                     Colorado State University,
- *                     University Pierre & Marie Curie, Sorbonne University,
- *                     Washington University in St. Louis,
- *                     Beijing Institute of Technology
+ * Copyright (c) 2014,  Regents of the University of California,
+ *                      Arizona Board of Regents,
+ *                      Colorado State University,
+ *                      University Pierre & Marie Curie, Sorbonne University,
+ *                      Washington University in St. Louis,
+ *                      Beijing Institute of Technology,
+ *                      The University of Memphis
  *
  * This file is part of NFD (Named Data Networking Forwarding Daemon).
  * See AUTHORS.md for complete list of NFD authors and contributors.
@@ -20,7 +21,7 @@
  *
  * You should have received a copy of the GNU General Public License along with
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
- **/
+ */
 
 #include "manager-base.hpp"
 #include "core/logger.hpp"
@@ -29,8 +30,10 @@
 
 NFD_LOG_INIT("ManagerBase");
 
-ManagerBase::ManagerBase(shared_ptr<InternalFace> face, const std::string& privilege)
+ManagerBase::ManagerBase(shared_ptr<InternalFace> face, const std::string& privilege,
+                         ndn::KeyChain& keyChain)
   : m_face(face)
+  , m_keyChain(keyChain)
 {
   face->getValidator().addSupportedPrivilege(privilege);
 }
@@ -92,7 +95,7 @@
   shared_ptr<Data> responseData(make_shared<Data>(name));
   responseData->setContent(encodedControl);
 
-  m_face->sign(*responseData);
+  m_keyChain.sign(*responseData);
   m_face->put(*responseData);
 }