Angle.normalized() results look wrong

[pondersome]

Angle.normalized() doesn't correctly map the angle to the supplied normalization range. You can see that in the test code where it reports angles well outside of 0 to TAU. It also changes angles that are already in the normalized range when it shouldn't. Maybe I'm misunderstanding the intended usage...

I can submit a working example as a pull request if you like. With an option for normalizing negative angles back to their positive equivalent