 6 9
         0    2.0000    0.0200         0    2.0000    0.0200   58.0000         0    0.0200
  181.0000    6.0000    0.0200  138.0000    4.0000    0.0200  217.0000    8.0000    0.0200
  234.0000   60.0000    0.0200  255.0000   32.0000    0.0200  195.0000  112.0000    0.0200
   87.0000  119.0000    0.0200   88.0000   67.0000    0.0200   86.0000  191.0000    0.0200
  233.0000  166.0000    0.0200  209.0000  137.0000    0.0200  259.0000  197.0000    0.0200
  203.0000  250.0000    0.0200  237.0000  232.0000    0.0200  203.0000  250.0000    0.0200

Add sample specification file for a piecewise cubic Bezier curve.
Add sample specification file for a piecewise cubic Bezier curve.

- this sample input file specifies a general Bezier curve (knots + control points)
- this is unlike the sample file 'pathS.txt' which only specifies knot locations (and therefore results in a spline interpolant)
