Integrate cord-onos-publisher

Added cord-onos-publisher as "participating submodule".
- tested fetch, buildImages, and publish
- verified that "mavenrepo" shows up in integration
  docker registry
diff --git a/build.gradle b/build.gradle
index 2b476c9..0964b23 100644
--- a/build.gradle
+++ b/build.gradle
@@ -62,6 +62,13 @@
                     'tag':          null,
                     'componentDir': './components/cord-tester'
             ],
+            'cord-onos-publisher': [
+                    'type':         'gitmodule',
+                    'upstream':     '../cord-onos-publisher',
+                    'branch':       'master',
+                    'tag':          null,
+                    'componentDir': './components/cord-onos-publisher'
+            ],
             'nginx': [
                     'type':     'image',
                     'upstream': upstreamReg,