Function GetConeTwistAngle( constraint_id)

Returns the current twist angle between the two actors connected by the constraint

• The twist angle is the current rotational angle between the two actors around the primary twist axis.
• It represents how much the actors have rotated relative to each other around the axis, which is the same axis that the twist limit is applied to.
• The twist angle can be compared to the twist limit to determine if the constraint is approaching or exceeding the allowed range of rotation.