Missing examples of Bezier interpolation

[BrunoWallner]

Hello
I wanted to interpolate a vector of 2D points using Bezier-interpolation, but I could not figure out how to do this after looking in the documentation and the examples.
Could anyone tell me how to do this and put it in the documentation?

Notes

• I do not know much about interpolation, "tangents" and math in general
• I use it for spectrum audio visualisation

[hadronized]

Hey @BrunoWallner, thanks for opening this PR.

I will have a look at the examples / documentation and will enhance that asap.

[Sinfaen]

Something I'm also interested in. To generate a quadratic bezier curve, it sounds like I have to input a start point, an end point, and a tangent (scalar value). I thought that the algorithm needs a control point rather than a tangent.