Bone collision mask with scaled bones

[fgenesis]

When a bone's scale factor (sz="...") is not (1, 1) and collision masks are generated, they appear to be wrong.

• FIgure out whether the debug draw code or the generation code is broken
• Aren't the circles supposed to be the same size no matter the size of the bone, since the mask generation is supposed to be equal-spaced? Might actually be the drawing code that's wrong because the circles are drawn using the bone's transform.