Add TAPI object resolver and DCS-dependent data provider ( to update cache )

- refactor TapiInstanceBuilder and add some util method
- add skeleton code for tapi-common get RPCs

Change-Id: I548623ad29f9b72b425713720c5081d790b42bd2
diff --git a/apps/odtn/api/pom.xml b/apps/odtn/api/pom.xml
index 1d971fc..19b5101 100644
--- a/apps/odtn/api/pom.xml
+++ b/apps/odtn/api/pom.xml
@@ -76,6 +76,11 @@
             <scope>test</scope>
             <classifier>tests</classifier>
         </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-apps-config</artifactId>
+            <version>${project.version}</version>
+        </dependency>
 
     </dependencies>