Refactor NEM charts to allow for multiple profiles

Change-Id: Ib98f1fc9ff9b7b0801a90edf4c8ec78cb4198014
diff --git a/helm-charts/nem-core/requirements.yaml b/helm-charts/nem-core/requirements.yaml
new file mode 100644
index 0000000..be454e2
--- /dev/null
+++ b/helm-charts/nem-core/requirements.yaml
@@ -0,0 +1,25 @@
+---
+# Copyright 2017-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.
+
+dependencies:
+
+- name: xos-core
+  version: 2.0.0
+  repository: https://charts.opencord.org/master/
+
+- name: kafka
+  alias: kafka
+  version: 0.4.7
+  repository: https://kubernetes-charts-incubator.storage.googleapis.com/