AETHER-1259 Add signal quality metrics to monitoring server

In addition to the signal quality update,
- Fix the license
- Add .gitignore

Change-Id: I73484aaf2a1047e66026743262ea713c2121c8d2
diff --git a/edge-monitoring/.gitignore b/edge-monitoring/.gitignore
new file mode 100644
index 0000000..c39a109
--- /dev/null
+++ b/edge-monitoring/.gitignore
@@ -0,0 +1,6 @@
+# Copyright 2020-present Open Networking Foundation
+#
+# SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
+
+*.pyc
+__pycache__/