UI-Lion: Adding some more localization files.

Change-Id: Iab7664bb4bb3128bb01c618e81c744b3db91b18b
diff --git a/web/gui/src/main/resources/org/onosproject/ui/lion/core/fw/Nav.properties b/web/gui/src/main/resources/org/onosproject/ui/lion/core/fw/Nav.properties
new file mode 100644
index 0000000..ecf717f
--- /dev/null
+++ b/web/gui/src/main/resources/org/onosproject/ui/lion/core/fw/Nav.properties
@@ -0,0 +1,29 @@
+#
+# Copyright 2017-present Open Networking Laboratory
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#
+# Localization strings for Navigation Panel
+
+# Category headers
+cat_platform=Platform
+cat_network=Network
+cat_other=Other
+
+# Note that contributed views will be adding their own localized titles
+#  for their nav item, with a property key "nav_item_{viewID}".
+#
+# E.g. in the Device view properties bundle there will be:
+#
+#  nav_item_device=Devices