add seerep-hdf5-ros to dump sensor data to hdf5

[jarkenau]

Meta issue to track and plan the implementation of the seerep-hdf5-ros package

1. Write basic dump of images into one hdf5 file
   • Test performance with a rosbag. Do we need concurrency or a queue to handle the incoming messages?
   • Test performance on a real robot
2. Add a way to split the data into multiple hdf5 file with a ROS action
   • All messages with a timestamp before the action was called go into one file.
   • All messages after the call go into another file
3. Add addition data types e.g. transformations and point clouds

Open Questions:

• Naming of the hdf5 files? A UUID? The timestamp?
• Connection to a SEEREP project?