Implement BandwidthResourceRequest class and its builder.
diff --git a/core/api/src/main/java/org/onlab/onos/net/resource/LambdaResourceRequest.java b/core/api/src/main/java/org/onlab/onos/net/resource/LambdaResourceRequest.java
index dfb3b81..30caa2d 100644
--- a/core/api/src/main/java/org/onlab/onos/net/resource/LambdaResourceRequest.java
+++ b/core/api/src/main/java/org/onlab/onos/net/resource/LambdaResourceRequest.java
@@ -3,6 +3,6 @@
 /**
  * Representation of a request for lambda resource.
  */
-public interface LambdaResourceRequest {
+public class LambdaResourceRequest implements ResourceRequest {
 
 }