Part Torus/sv

Creates a simple parametric torus, with position, angle1, angle2, angle3, radius1 and radius2 parameters. The torus will be positioned at origin (point 0,0,0) on creation. The angle parameters permit to make a portion of torus instead of a full one (they are set to 360° by default), the radius 1 and 2 define respectively the size of the hole and the ring thickness of the torus.