inital term info service

Change-Id: I4503f1dcadda62bb25e2dba106e9a1101b4d37d6
diff --git a/core/api/src/main/java/org/onlab/onos/cluster/MastershipTerm.java b/core/api/src/main/java/org/onlab/onos/cluster/MastershipTerm.java
new file mode 100644
index 0000000..5c3c424
--- /dev/null
+++ b/core/api/src/main/java/org/onlab/onos/cluster/MastershipTerm.java
@@ -0,0 +1,6 @@
+package org.onlab.onos.cluster;
+
+public class MastershipTerm {
+    private final NodeId master = null;
+    private int termNumber;
+}