Text: support curveRadius around y-axis (in addition to current z-axis curve)

Describe the feature you'd like:

I submitted this as an issue in the Trokia repository (here: https://github.com/protectwise/troika/issues/200), but I'm not sure where changes to the Text component I'm using from you all would need to take place so I'll put it here as well:

I'm working on a project right now where I have Text labeling somthing on the surface of the earth, and wish I was able to curve the text around the surface. I know I can curve it "vertically", but would like it be able to do the equivalent of wrapping it around a cylinder or sphere. I can set it in a particular position so that it appears to lay flat on the surface of the sphere, but if the camera moves much, it's clear that that's not the case.

Not a huge deal, but thought I'd suggest it since it would be helpful.