Fix courtyard for scripted capacitor tht footprints
Here the fix for the capacitor THT courtyard clearance. The script used the silk outline as the reference instead of the component size.
I checked some random footprints in kicad and checked all footprints visually in the footprint browser. Did not find anything obviosly wrong with them.
script PR: https://github.com/pointhi/kicad-footprint-generator/pull/127