bugfix [#24907] bone roll z up broken and python script showing correct method to roll bones

from Josh Wedlake (joshwedlake), who provided a reference script used to apply changes in ED_rollBoneToVector().

- Obvious bug fixed where Z-Up didnt work right.
- More align axis options to Recalculate Roll operator: X/Y/Z/View Axis & Negate.
- Axis Only option, ignore the axis direction, use shortest rotation to align bones.


ED_rollBoneToVector() changes:
- would give bad roll when the axis wasn't normalized or perpendicular to the bone.
  some callers accounted for this but not all.
- option to align to the axis but not the direction.

source/blender/editors/transform/transform_generics.c

@@ -747,7 +747,7 @@ void recalcData(TransInfo *t)
 								mul_m3_v3(t->mat, up_axis);
 							}
 							
-							ebo->roll = ED_rollBoneToVector(ebo, up_axis);
+							ebo->roll = ED_rollBoneToVector(ebo, up_axis, FALSE);
 						}
 					}
 				}