SDFAB-998 Move omec-user-plane from aether-helm-chart to sdfabric-helm-chart

It is renamed to bess-upf.
The license is also updated to Apache 2.0.
We also remove omec-upf-cni which is no longer in use.

Change-Id: Ie9ce877c13203a76bf90d24918734ded33587157
diff --git a/bess-upf/Chart.yaml b/bess-upf/Chart.yaml
new file mode 100644
index 0000000..0ae02d7
--- /dev/null
+++ b/bess-upf/Chart.yaml
@@ -0,0 +1,10 @@
+# Copyright 2020-present Open Networking Foundation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+apiVersion: v1
+description: OMEC user plane based on BESS
+name: bess-upf
+icon: https://guide.opencord.org/logos/cord.svg
+
+version: 0.0.1