Tuya: Add command manual_feed for PLAF203 Camera Feeder

It would be nice if the command manual_feed could be added for the PLAF203 Camera Feeder.

In an other smarthome system (ioBroker) an tuya integration exists there the command “manual_feed” can be executed for this device by a number between 1-50 which indicates the number of portions (analogous to the original device’s own app).