Update pinger.yaml to comply with acoustic_pinger_tutorial

[Tinker-Twins]

Updated the pinger.yaml file to include pinger position [65.0, -47.5, -2] in order to comply with the results produced by Visualize sensor measurements in RViz section in acoustic_pinger_tutorial.

[caguero]

Thanks for detecting this inconsistency in the tutorial. How about we create a solution that works for the 2019 world and the current one (2022)?

I suggest to create a new pinger.launch under vrx_2019/launch pointing to a config file under vrx_2019/config/pinger.yaml? Then, you can set the new yaml file with the old values [65.0, -47.5, -2].

We should be able to launch both alternatives with:

roslaunch vrx_gazebo pinger.launch

or

roslaunch vrx_2019 pinger.launch

[caguero]

You also need to install the config directory. I suggest to add this block to vrx_2019/CMakeLists.txt:

# Install all the config files
install(DIRECTORY config/
  DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}/config)

[Tinker-Twins]

Made the necessary changes and tested locally by cloning the updated repository.