ONOS-6034 Added purge and sync flow rules CLIs

Also removed unnecessary boxing from RoutingSnatHandler

Change-Id: Ibb0a1e5dc6465bbf378bf7d105e162f429f6c02a
diff --git a/apps/openstacknetworking/src/main/resources/OSGI-INF/blueprint/shell-config.xml b/apps/openstacknetworking/src/main/resources/OSGI-INF/blueprint/shell-config.xml
index 67ab56a..8e6cda7 100644
--- a/apps/openstacknetworking/src/main/resources/OSGI-INF/blueprint/shell-config.xml
+++ b/apps/openstacknetworking/src/main/resources/OSGI-INF/blueprint/shell-config.xml
@@ -36,5 +36,11 @@
         <command>
             <action class="org.onosproject.openstacknetworking.cli.OpenstackSecurityGroupListCommand"/>
         </command>
+        <command>
+            <action class="org.onosproject.openstacknetworking.cli.OpenstackPurgeRulesCommand"/>
+        </command>
+        <command>
+            <action class="org.onosproject.openstacknetworking.cli.OpenstackSyncRulesCommand"/>
+        </command>
     </command-bundle>
 </blueprint>