feat: visualize transform chains

[jokasimr]

Fixes #292

[jokasimr]

[nvaytet]

I think it would be useful to show the values as well? How many meters it was translated by in what direction?
Also degrees of rotation? (for rotations, maybe if we can see it's around a specific axis we can show that; otherwise, I am not sure showing the rotation matrix is so useful?)

Finally, I wonder if placing things at scale in the graph would be useful/possible for the translations? You could then build some sort of instrument layout with relative spacings between components?

[jokasimr]

I added fields for the transformation vector and the magnitude.

Placing things at scale I think wouldn't be so useful here. I interpreted this to be a more abstract illustration to debug/understand transformations in a nexus file. It would be difficult to make it look good, because some translations might be tiny and other might be large, and it would only cover the translations anyway (since we can't rotate out of the screen).

[jokasimr]

Examples