Add ST PowerSO-20/36-SlugUp/Down-ThermalVias footprints
Created by: Salamandar
Add ST PowerSO-20/36-SlugUp/Down-ThermalVias footprints This replaces the #644.
Edited by kliment
Created by: Salamandar
Add ST PowerSO-20/36-SlugUp/Down-ThermalVias footprints This replaces the #644.