SnapFit (snaplock) Connector Library

After a few only moderately successful attempts to add snap-lock features to some of my things, I spent about an hour looking for a snap connector library. I couldn't find one, so put this one together remixing various ideas from other things. My collection of snapfit parts (which all contributed to the development of this library) is: https://www.thingiverse.com/dgm3333/collections/snapfit

Hopefully it will make it easier to create snap fit parts for your designs and decrease the need for gl