Improving logs

Change-Id: I75021b47851b3af946dc3a9b41a516934b4b2e3a
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..6ea046e
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module gerrit.opencord.org/omci-sim
+
+go 1.12
+
+require github.com/sirupsen/logrus v1.4.2