GORT 1.3.0

🚀 New

• #39 Implement transparency monitoring.
• Add observer schedule-focus-sweep command to Overwatcher actor to schedule a focus sweep before the next tile.

✨ Improved

• #40 Slight internal restructuring of the core classes Gort, GortClient, device and remote actor classes. The main goal was to avoid any other part of the library knowing about GortClient, which does not include anything not related to its AMQP client function any more.
• Use Retrier from lvmopstools to handle remote command retries.
• Prevent repeat notifications with the same message.
• Add retries to NPS commands.

🔧 Fixed

• Prevent trying to observe while a calibration is ongoing even if it's night.
• Add max_start_time to bias_sequence to prevent if from running after twilight.