[VOL-1615] Create VOLTHA 2.0 Helm Charts

Squashed version of David Bainbridge's patches at commit:

 https://github.com/ciena/voltha-helm-charts/commit/120fb4b719e0492e6a0a24cc78d08b806e3698fa

Linted the README, fixed whitespace and incubator repo address

Change-Id: I7c5b1c3478450bbefbed09a75e9029e6371cae3a
diff --git a/voltha/templates/affinity-router.yaml b/voltha/templates/affinity-router.yaml
new file mode 100644
index 0000000..ab8b4b2
--- /dev/null
+++ b/voltha/templates/affinity-router.yaml
@@ -0,0 +1,71 @@
+# 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.
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: voltha-api
+  serviceAccountName: {{ .Values.serviceaccount }}
+spec:
+  serviceAccountName: {{ .Values.serviceaccount }}
+  ports:
+    - name: grpc
+      port: 55555
+      targetPort: 55555
+  selector:
+    app: voltha-api-server
+
+---
+apiVersion: apps/v1beta1
+kind: Deployment
+metadata:
+  name: voltha-api-server
+  serviceAccountName: {{ .Values.serviceaccount }}
+spec:
+  replicas: {{ .Values.replicas.afrouter }}
+  template:
+    metadata:
+      labels:
+        app: voltha-api-server
+      annotations:
+        cni: "calico"
+    spec:
+      serviceAccountName: {{ .Values.serviceaccount }}
+      containers:
+      - name: arouter
+        image: {{ .Values.registry }}{{ .Values.images.afrouter.repository }}:{{ tpl .Values.images.afrouter.tag . }}
+        imagePullPolicy: {{ .Values.images.afrouter.pullPolicy }}
+        volumeMounts:
+        - name: config-volume
+          mountPath: /app/config
+        ports:
+        - containerPort: 55555
+        env:
+        - name: POD_NAMESPACE
+          value: {{ .Release.Namespace }}
+        command: ["/app/afrouter"]
+        args: ["-config", "/app/config/arouter.voltha.json"]
+      - name: arouterd
+        env:
+        - name: POD_NAMESPACE
+          value: {{ .Release.Namespace }}
+        image: {{ .Values.registry }}{{ .Values.images.afrouterd.repository }}:{{ tpl .Values.images.afrouterd.tag . }}
+        imagePullPolicy: {{ .Values.images.afrouterd.pullPolicy }}
+        command: ["/app/arouterd"]
+      restartPolicy: Always
+      volumes:
+        - name: config-volume
+          configMap:
+            name: afrouter-config