microchip_dspic33dsc: Add a hidden pin for the exposed pad
microchip_dspic33dsc: Add a hidden pin for the exposed pad

pointhi/kicad-library,stambaughw/kicad-library,crackerizer/kicad-library,crackerizer/kicad-library,true-nature/kicad-library,true-nature/kicad-library,stambaughw/kicad-library