COMAC-171,COMAC-172,COMAC-173 Restructure mcord-release charts

Done
- Rename mcord-services to omec
- Split mcord-services to omec-data-plane and omec-control-plane
- Merge mcord-setup to omec-data-plane chart
- Move cdn-services outside of omec
- Work fine in single cluster

To do
- Make it work in multi-cluster

Change-Id: Ic91d7732b844347b9f0a78a97b5d6d888d00887b
diff --git a/omec/omec-data-plane/templates/_helpers.tpl b/omec/omec-data-plane/templates/_helpers.tpl
new file mode 100644
index 0000000..af69c64
--- /dev/null
+++ b/omec/omec-data-plane/templates/_helpers.tpl
@@ -0,0 +1,36 @@
+{{- /*
+# Copyright 2019-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+*/ -}}
+
+{{/*
+Renders a set of standardised labels.
+*/}}
+{{- define "omec-data-plane.metadata_labels" -}}
+{{- $application := index . 0 -}}
+{{- $context := index . 1 -}}
+release: {{ $context.Release.Name }}
+app: {{ $application }}
+{{- end -}}
+
+{{/*
+Render the given template.
+*/}}
+{{- define "omec-data-plane.template" -}}
+{{- $name := index . 0 -}}
+{{- $context := index . 1 -}}
+{{- $last := base $context.Template.Name }}
+{{- $wtf := $context.Template.Name | replace $last $name -}}
+{{ include $wtf $context }}
+{{- end -}}