Task to launch OpenSFM on campaigns active panoramas

[Benvii]

We need to document and create a task (might be devieded into multiple subtask) that :

• fetch all active panorama of a given campaign
• start OpenSFM
• extract all GPS corrected sensors data (convert them to lla)
• extract orientation data convert them to degrees/minutes
• save this sensors data in panorama.corrected_sensors see Adding corrected sensors to panorama and path_node view. Fixes #51 OPV_DBRest#52
• If corrected sensors data aren't found (panorama not in any reconstruction) use the original sensors as corrected sensors
• document how to execute it (thought docopt or readme file)