title: Add shell script as executable to catkin package to use with rosrun
body: <p>When using a catkin package it is possible to start the c++ executables, that were added in the <code>CMakeLists.txt</code>, using the command <code>rosrun &lt;package_name&gt; &lt;executable_name&gt;</code> from anywhere on the computer.</p>
  <p>Is there a way to add a shell script as an executable to the catkin package so that it can be called using <code>rosrun &lt;package_name&gt; &lt;script.sh&gt;</code>?</p>