Added MCP14A030x

Created by: SchrodingersGat

Three gate drivers from Microchip:

Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/MCP14A0303_4_5-Data-Sheet-20006046A.pdf

Footprint PR - https://github.com/KiCad/kicad-footprints/pull/974

Added the DFN-8 package variant, there are three different versions