Port Authentication Tracker - initial cut.

- With unit tests for behavior.

Change-Id: Icdf0c62268171e8c40d395366547a0bcaf612b61
diff --git a/src/test/resources/blocked-ports-alt.json b/src/test/resources/blocked-ports-alt.json
new file mode 100644
index 0000000..3d8749e
--- /dev/null
+++ b/src/test/resources/blocked-ports-alt.json
@@ -0,0 +1,5 @@
+{
+  "of:0000000000000001": ["1-9"],
+  "of:0000000000000003": ["7"],
+  "of:0000000000000004": ["1"]
+}