Initial implementation of Meter Service (needs testing)

Change-Id: Ie07bd3e2bd7c67a6499c965d8926eb361ad16462

store impl started

Change-Id: Ib8b474f40dcecff335a421c12ad149fe9830c427

full implementation

Change-Id: Ie59fd61d02972bd04d887bdcca9745793b880681
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/meter/MeterContext.java b/incubator/api/src/main/java/org/onosproject/incubator/net/meter/MeterContext.java
index 4c814f8..919cf63 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/meter/MeterContext.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/meter/MeterContext.java
@@ -34,6 +34,5 @@
      * @param op a meter operation
      * @param reason the reason why it failed
      */
-    default void onError(MeterOperation op, MeterFailReason reason) {
-    }
+    default void onError(MeterOperation op, MeterFailReason reason) {}
 }