Adds calibration save restore and bounding box features

Features

• ✨ The calibration results will now be saved to the calib_frames_poses.yaml file so that they can be retrieved at a later moment. As a result in the CLI you can now choose to use the old calibration instead of performing a new one.
• ✨ You can now specify a bounding box for the grasp computation algorithm in the main_config.yaml file. This bounding box can be enabled by setting the use_bounding_box launch file argument.
• 📝 The documentation has been updated to include these new features.