Moved trivial from net to store.
Fixed some javadocs.
diff --git a/core/store/hz/net/src/main/java/org/onlab/onos/store/flow/impl/package-info.java b/core/store/hz/net/src/main/java/org/onlab/onos/store/flow/impl/package-info.java
new file mode 100644
index 0000000..f09ac11
--- /dev/null
+++ b/core/store/hz/net/src/main/java/org/onlab/onos/store/flow/impl/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Implementation of flow store using Hazelcast distributed structures.
+ */
+package org.onlab.onos.store.flow.impl;