service: Initial implementation of the NFD Android Service

Change-Id: Iee2c2f3588aa9af36bd170a22ce8333e4945ff67
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 63746a1..e39585d 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,3 +1,5 @@
 <resources>
     <string name="app_name">NFD</string>
+    <string name="service_name">NFD Service</string>
+    <string name="action_settings">Settings</string>
 </resources>