Chamfered primitives for OpenSCAD (Also: Wedges)

A library to create primitives with 45° chamfers in OpenSCAD.

[GitHub repo](https://github.com/SebiTimeWaster/Chamfers-for-OpenSCAD)

### What it does
The commands `chamferCube` and `chamferCylinder` can be used to create chamfered versions of the existing `cube` and `cylinder` commands.

The Chamfers are always at a 45° angle to the ground plane and are printable on Fused deposition modelling (FDM) printers in a good quality.

### Additionally
* The `chamferCylinder` can also produce