use-rs274: test that NURBS can be used
use-rs274: test that NURBS can be used

IRC user ickalB reported that his program encountered problems
due to a missing implementation of knot_vector_creator.  I am
unable to reproduce his report.

Signed-off-by: Jeff Epler <623a871f32baaca066adfe0cac08d7aa7d34027d@unpythonic.net>

ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror