Add cluster test config file.
One can modify the test iterations directly here.
Allow for minimum heap size configuration with 'M' or megabyte suffix for onos jvm heap.

Change-Id: I9da9c3a3799c4543512a9cf3ea3f309496df7e80
diff --git a/src/test/cluster/clusterTest.json b/src/test/cluster/clusterTest.json
new file mode 100644
index 0000000..4780b62
--- /dev/null
+++ b/src/test/cluster/clusterTest.json
@@ -0,0 +1,5 @@
+{
+    "V_INF1" : "veth0",
+    "TLS_TIMEOUT" : 100,
+    "ITERATIONS" : 10
+}