Added support for "maps" cli command that displays meta information for various consistent maps in the system

Change-Id: I63e590a8520ac9d1238efe4ad0033dcba939e472
diff --git a/core/api/src/main/java/org/onosproject/store/service/StorageAdminService.java b/core/api/src/main/java/org/onosproject/store/service/StorageAdminService.java
index 427b953..572867c 100644
--- a/core/api/src/main/java/org/onosproject/store/service/StorageAdminService.java
+++ b/core/api/src/main/java/org/onosproject/store/service/StorageAdminService.java
@@ -28,4 +28,11 @@
      * @return list of partition information
      */
     List<PartitionInfo> getPartitionInfo();
+
+    /**
+     * Returns information about all the consistent maps in the system.
+     *
+     * @return list of map information
+     */
+    List<MapInfo> getMapInfo();
 }