Extra vector angle function.

[wilham7]

Hey there,

I've been using the VectorAngle and VectorAngleOnPlane functions.

I would like the possibility to use the VectorAngleOnPlane function and ALWAYS receive the angle between A and B, regardless of if it is reflex or regular angle. This is how the VectorAngle function works as does the Rhino vector and angle method.

https://developer.rhino3d.com/api/RhinoCommon/html/M_Rhino_Geometry_Vector3d_VectorAngle_1.htm

Thanks!

[sonomirco]

Using the current VectorAngleOnPlane, the angle returned could be internal or the reflexAngle.
It would be nice to have this method passing returning only the angle between the vectors as Vector3d.VectorAngle in Rhinocommon does.
mcneel/rhinocommon#178