Add footprint for nRF5340-QKxx

F6.3 is false violation, the pad has split paste

F9.3 is violation on purpose - I don't have the resources to create a 3D model

Added aQFN94 footprint for Nordic nRF5340-QKxx Package specifications: https://infocenter.nordicsemi.com/index.jsp?topic=%2Fps_nrf5340%2Fchapters%2Fmec_spec.html

Associated symbol merge request: kicad-symbols!3615 (merged)