Move Metrics REST classes to appropriate directories

Moved Metrics Resource classes to net.onrc.onos.core.metrics.web
Moved Metrics Serializer class to net.onrc.onos.core.metrics.web.serializers

Change-Id: I2dec174baaee818feb74333cd17bd9ac61e05d83
diff --git a/src/main/java/net/onrc/onos/core/metrics/OnosMetricsModule.java b/src/main/java/net/onrc/onos/core/metrics/OnosMetricsModule.java
index 6f046cf..4c428ce 100644
--- a/src/main/java/net/onrc/onos/core/metrics/OnosMetricsModule.java
+++ b/src/main/java/net/onrc/onos/core/metrics/OnosMetricsModule.java
@@ -5,6 +5,7 @@
 import net.floodlightcontroller.core.module.IFloodlightModule;
 import net.floodlightcontroller.core.module.IFloodlightService;
 import net.floodlightcontroller.restserver.IRestApiService;
+import net.onrc.onos.core.metrics.web.MetricsWebRoutable;
 import net.onrc.onos.core.registry.IControllerRegistryService;
 
 import java.util.ArrayList;