First commit of a simple package that can be used for demonstration.

include/j7s-simple/j7s-publisher.hpp

@@ -0,0 +1,26 @@
+// Copyright 2023 James Pace
+//
+// 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.
+#pragma once
+
+#include "rclcpp/rclcpp.hpp"
+#include "std_msgs/msg/string.hpp"
+
+class J7sPublisher: public rclcpp::Node
+{
+public:
+    J7sPublisher();
+private:
+  rclcpp::TimerBase::SharedPtr m_timer;
+  rclcpp::Publisher<std_msgs::msg::String>::SharedPtr m_publisher;
+};