Calibration updates for Noetic

[Serafadam]

• camera_info_manager for each of the nodes
• example launch and config files
• minor refactor in image publishing
• bumped version

[saching13]

if the camera_info is published from the yaml files of ROS calibration. it might not match the ones in on-device and might affect when depth maps are converted to pointcloud using those camera_info

[Serafadam]

Fair point :+1: I'll remove that from stereo