Merge branch 'hotfix/VSP_Biconvex_Crash'
Cleaning up piecewise curve splitting code to be more robust.
Changed get min/max parameter interface to return parameter.
Finish changes for curve min/max parameter change.
Added getter for umax/vmax for piecewise surfaces.
Added getter for u/v min/max to bezier surface.
Merge branch 'hotfix/Piecewise_Curve_Split_Cleanup' into develop