AETHER-513 Add grafana-aether Helm chart

Change-Id: I54b208bbbc981d2bff252ce9586d716dafb053cc
diff --git a/monitoring/grafana-aether/dashboards/global-edge-status.json.license b/monitoring/grafana-aether/dashboards/global-edge-status.json.license
new file mode 100644
index 0000000..c522327
--- /dev/null
+++ b/monitoring/grafana-aether/dashboards/global-edge-status.json.license
@@ -0,0 +1,2 @@
+Copyright 2020-present Open Networking Foundation
+SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0