Add DDF for Aqara Ceiling Light T1M (CL-L02D) (#7895)

See #7653.

Initial DDF, exposing both light endpoints: main light as Color Temperature Light and ring light as Extended Color Light. No support yet for dynamic effects, nor for gradients of the ring light.

Somehow, the ring won't dim at xy [0, 1] (red) or [0, 0] (blue). When mixing some other colour, like [0, 0.01] it will. Not sure what's happening here. Maybe we need to adjust the gamut slightly, to prevent [0, 0], and [0, 1]. At [1, 0] (green), it will dim.