[Feature] Exposing Gradient and Effect features of Philips hue gradient light bar
### Problem description

Would it be possible to expose gradient and effect features of Philip's Hue Gradient Light bar (https://www.zigbee2mqtt.io/devices/929002994901.html) to HomeKit through this plugin, somehow?  The light is correctly detected and features seem to be reachable through z2m/mqtt.

### Suggested solution

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### Alternative solutions

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### Additional context / information

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