Color conversion

[oligriffiths]

Is your feature request related to a problem? Please describe.

I have a need to be able to take 3 input channels for RGB and convert them to HSV.
I have achieved this via a mapping script right now that takes in 3 DMX channels and converts it to H, S, V but it would be great if this was built in.

Describe the solution you'd like
A filter that can take 3 inputs from any source and emit 3 outputs of HSV

Describe alternatives you've considered
Custom filter script

Additional context
Nope