Bambu AMS 2 Pro drying#722

Maybe it would be worth adding support for the drying function in the Bambu Lab AMS 2 Pro. It can be started and stopped using MQTT commands from the print class.

Start example:
{ "print": { "sequence_id": "0", "ams_id": 101, "command": "ams_filament_drying", "cooling_temp": 45, "duration": 12, "humidity": 0, "mode": 1, "rotate_tray": false, "temp": 45 } }

Stop example:

{ "print": { "sequence_id": "0", "ams_id": 101, "command": "ams_filament_drying", "cooling_temp": 40, "duration": 0, "humidity": 0, "mode": 0, "rotate_tray": false, "temp": 0 } }