add Phillips Hue Xamento

[Thorsten1982]

Device information

The lamp is a Phillips Hue Xamento L (Large) Ceiling Light (White and Color Ambiance). It is a round, surface-mounted light that supports both white tones (2000K-6535K) and the full color spectrum.

https://www.philips-hue.com/de-de/p/hue-white-color-ambiance-xamento-deckenleuchte-l-weis/4116831P9

Model: 915005987701 Manufacturer: Signify Netherlands B.V. (Philips)

Home Assistant Device information

min_color_temp_kelvin: 2000
max_color_temp_kelvin: 6535
min_mireds: 153
max_mireds: 500
supported_color_modes: color_temp, xy
supported_features: 44

Checklist

• [x ] I have created a single PR per device. When you have multiple submissions please create separate PR's.
• [ x] For lights - I have only included the gzipped files (*.gz), not the raw CSV files.
• [ x] For lights - I have provided a CSV file per supported color mode. Look that up in Developer Tools -> States

Additional info

The measurement was performed using a Dummy Load because the light's power consumption in standby and low brightness (below brightness 35/255) was below the Shelly 1PM Gen4's minimum measurement threshold.