model: Change NetDeviceFace into NetDeviceLinkService to match NFD 0.4+ Face model

ndnSIM (for now) intentionally uses LinkService instead of Transport for
optimization purposes and in order to preserve ns3::Packet Tags.  This
may be fixed in the future when there is a different mechanism to
propagate ns3 Tags or Tags are no longer necessary.

Change-Id: I2aeef8f37d587374a1c9fe04386e33b6fde83fe0
Refs: #3560
diff --git a/wscript b/wscript
index 40f1468..51ab7f4 100644
--- a/wscript
+++ b/wscript
@@ -139,9 +139,13 @@
     module.source = bld.path.ant_glob(['%s/**/*.cpp' % dir for dir in module_dirs],
                                       excl=[
                                           'apps/*',
-                                          'model/**/*',
+                                          'model/ndn-global-router.cpp',
+                                          'model/ndn-app-face.cpp',
+                                          'model/ndn-app-link-service.cpp',
+                                          'model/ndn-l3-protocol.cpp',
                                           'helper/*',
-                                          'utils/**/*',
+                                          'utils/topology/*',
+                                          'utils/tracers/*',
                                           'model/ip-faces/*']) + ndnCxxSrc + nfdSrc
 
     module_dirs = ['NFD/core', 'NFD/daemon', 'NFD/rib', 'apps', 'helper', 'model', 'utils']