Basic Hinge

Nothing new, just publishing separately the hinge module used in things 5750 5822 and 5859.

This is an OpenScad script that can be used to generate hinges for joining printed parts. The default values are set to be compatible with things 5750 5822 and 5859.

One useful addition is the option of pinning down the clips with extra plastic, which makes it print more reliably with raft-less settings.