Formula for kicad

This provides a formula for the electronic development package kicad which includes a schematic editor and pcb layout package.  There is a second formula which provides the component library for that.  Unfortunately they don't release packages so it is compiling from bazar.

This builds the packages as a .app which I know is not standard.  I have a patch which makes them compile as command line applications but the menus then do not show up which is pretty damaging.