Feature, Could you add support `convert to points with curve tolerance`

The tinyspline support `sample` with point num now, but I want to get points from spline with curve tolerance.

The tolerance means like the deflection, comes from [OCCT QuasiUniformDeflection](https://github.com/Open-Cascade-SAS/OCCT/blob/master/src/GCPnts/GCPnts_QuasiUniformDeflection.cxx).