Started to insert a function to intersect BSplineCurve with a Ray
Cutting line with BSpline is now working
Tried to include templating of BSplineCurve with 2d for ToothProfiles and curves in SimpleGear. But I think the code is ugly like this and we get many problems because of this templating thing. We should discuss this another time
Merge branch 'master' of https://github.com/happah-graphics/happah