Create a twisting deformation. If an input shape is provided, it will be deformed accordingly.

Input parameters:

1. Sh → Optional shape to twist.
2. Ax → Twisting axis.
3. A1 → Rotational angle at the start of the axis.
4. A2 → Rotational angle at the end of the axis.
5. In → Infinite twist.
   •  True → Infinite
   • False → Finite

Output parameters:

1. Sh → Shape with applied deformation.
2. Df → Twisting deformation.