====== ROS Publisher Double Array ======
This block samples the vector signal at its input and packs it into a ROS message of type ''std_msgs::Float64MultiArray''. Each time the block is run by its time domain, this message is published under a given topic name.
<code cpp>
  RosPublisherDoubleArray pubArray("myTopic", 100); // create publisher block
</code>
For ROS2 you have to pass the node, from where the topic is sent. The ROS2 message is of type ''std_msgs::msg::Float64MultiArray''.
<code cpp>
  RosPublisherDoubleArray pubArray(node, "myTopic", 100); // create publisher block
</code>

This block can be connected to any signal whose value is of type ''Matrix<N, 1, double>''. \\
IMPORTANT The time stamp of the signal is not transmitted.