Add color-based token recognition

[philipbelesky]

This is very much a draft/tracking PR, the code below is just the first stage in integrating a standalone prototype that produces edges and center-points based on color recognition.

Since #25 was initially opened, I'm assuming the preference is for this functionality to be encapsulated into the main component. My initial thoughts would be that this would require:

• An additional input array (list of colors to match from)
• An additional output array (tree of edge Curves for each color)
• An additional output array (tree of center Point3D for each color)
• A parameter for color threshold/leniency that could be integrated into the slider UI

I guess the new input/outputs could be shown/hidden based on if this analysis type is engaged. But there may not be much need given the component ends up being very tall in practice due to the sliding panels.

As previously mentioned, the intent is for this to be merged after a proper 2.0 release. Also, let me know if there's anything else to do on the 2.0 release front?

[mariuszhermansdorfer]

FYI @philipbelesky, I'm on holidays for the next 2 weeks and won't be able to look into this. Will get back to you in the first week of March.

[mariuszhermansdorfer]

Agreed - let's focus on the 2.0 release and add this later. I will prepare the Yak package and publish it as pre-release. Would appreciate it if you could test it before we roll it out to the community.

[mariuszhermansdorfer]

@philipbelesky, thanks for testing it with V2.

Could you please rebase this to master? It's updated now and it would be good to start with a clean slate. Also, let's open a dedicated issue to discuss the direction.