[ColorUtil] Extend rgbToHsb(PercentType[]) for RGBW #3882
Merged
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rgbToHsb(PercentType[]) supports arrays of size 4 (RGBW) in addition to and arrays of size 3 (RGB).
In contrast to rgbToHsb(int[4]) this does not introduce errors (rounding to int).
@genesis81 FYI