====== ROS2 Publisher Digital Signal ======
This block samples the signal at its input and packs it into a ROS2 message of type ''eeros_msgs::msg::DigitalSignal''. Each time the block is run by its time domain, this message is published under a given topic name.
<code cpp>
  RosPublisherDigitalSignal<> pubDS(node, "myTopic"); // create publisher block
</code>
This block will publish a single signal together with its time stamp. Alternatively, you could publish a vector by instantiating a block with
<code cpp>
  RosPublisherDigitalSignal<Matrix<3,1,bool>> pubDS(node, "myTopic"); // create publisher block
</code>