Fix EP round radius for QFN footprints
Splitting #1821 into smaller bits. This one handles "normal" QFN footprints with the new EP radius. (I think one or two non EP footprints are also included) Script: pointhi/kicad-footprint-generator#422 Issue: #1798 (closed)
For some strange reason the following footprint is generated but does not exist in the lib:
- QFN-14-1EP_1.6x1.6mm_P0.4mm_EP0.74x0.74mm_ThermalVias.kicad_mod