Added wide PTC footprint to PowerIC library

Adding a wider PTC footprint to PowerIC library which achieves better
reflow and AOI. Varient is SMD-W.
Added ISP to shield footprint for adding SPI compatibility.

When creating shields with SPI communication we need to add the 2x3
connector so that the shield has the option of getting SPI from the
mainboard over the 2x3 male pins. This will make the shield compatible
with Leonardo and Mega.
Added wide QRE1113 footprint

Increased pad sizes for better reflow and AOI.
Added RPACK-SIP-PTH-8 footprint