Investigate range extent scaling

[nfrechette]

The segment range extent is always bounded by [min value ... (1.0 - min value)]

If my min value is say 0.6, my extent can be at most 0.4. Instead of doing: mul_add(value, extent, min) Try: mul_add(value, (1.0 - min) * extent_scaled, min)

The smaller the range extent, the more precise our bits become.

The same also holds for the range extent for rotation tracks since the boundaries are known: [-1.0 .. 1.0]

[nfrechette]

Very similar in spirit to this: https://momentsingraphics.de/I3D2022.html