Added example plugin file

Author: git-commit

plugins/examplePlugin.py

@@ -0,0 +1,9 @@
+from plugnplay import Plugin
+from TardisUtil import TimeSubmitter
+
+
+class ExamplePlugin(Plugin):
+    implements = [TimeSubmitter]
+
+    def submit_time(self, duration):
+        print("Time submitted: %f" % duration)