Partial rotate_extrude (OpenSCAD) working with 0 radius

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To create a 3D object for my printer, I employed the partial_rotate_extrude function from CarryTheWhat. However, I noticed that it didn't work with zero radius. Thus, I modified the script to include a new parameter allowing a partial_rotate_extrude with a translation radius of zero. This function is similar to rotate_extrude and can be used as follows: `partial_rotate_extrude(angle = 90, radius = 3, axial_range= 5, convex = 20) circle(5);`. The 'axial_range' denotes the object's dimension perpendicular to the rotation axis, and the 'convexity' parameter is similar to rotate_extrude. For a more intricate example, refer to OpenSCAD's documentation on extruding a polygon. Additionally, CarryTheWhat's module for pie slices can be utilized within the partial_rotate_extrude function.