Add robot framework helm chart for CSIT

Steps to run policy csit in kubernetes is updated in the README.md

Issue-ID: POLICY-4532
Signed-off-by: zrrmmua <ramesh.murugan.iyer@est.tech>
Change-Id: I116658dfafd4e70bd256173f046da72af6803eaa
diff --git a/helm/robot/templates/service-account.yaml b/helm/robot/templates/service-account.yaml
new file mode 100644
index 0000000..3379b80
--- /dev/null
+++ b/helm/robot/templates/service-account.yaml
@@ -0,0 +1,20 @@
+{{/*
+# Copyright (C) 2023 Nordix 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: ServiceAccount
+metadata:
+  name: {{ .Chart.Name }}-read
\ No newline at end of file