Refactored cross connect helpers to optical drivers package.

Change-Id: Iae23025cf0b33c51123911f3ff1249cabc812be2
diff --git a/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumSdnRoadmFlowRuleProgrammable.java b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumSdnRoadmFlowRuleProgrammable.java
index 7dde491..840fc99 100644
--- a/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumSdnRoadmFlowRuleProgrammable.java
+++ b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumSdnRoadmFlowRuleProgrammable.java
@@ -17,6 +17,8 @@
 
 import com.google.common.collect.Lists;
 import org.apache.commons.lang3.tuple.Pair;
+import org.onosproject.driver.optical.flowrule.CrossConnectCache;
+import org.onosproject.driver.optical.flowrule.CrossConnectFlowRule;
 import org.onosproject.net.ChannelSpacing;
 import org.onosproject.net.GridType;
 import org.onosproject.net.OchSignal;