Add initial ROS core chart for drone demo

Change-Id: I065c9640a1d965e53b8a691413d59a41c278dece
diff --git a/apps/ros-core/templates/configmap-roscore.yaml b/apps/ros-core/templates/configmap-roscore.yaml
new file mode 100644
index 0000000..a2cfa8f
--- /dev/null
+++ b/apps/ros-core/templates/configmap-roscore.yaml
@@ -0,0 +1,14 @@
+# Copyright 2021-present Open Networking Foundation
+#
+# SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
+
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: ros-core
+  labels:
+{{ tuple "ros-core" . | include "ros-core.metadata_labels" | indent 4 }}
+data:
+  run_roscore.sh: |
+{{ tuple "bin/_run_roscore.sh.tpl" . | include "ros-core.template" | indent 4 }}