Added LCC-8 package based on Analog Devices LTC6655.
LCC-8 (ceramic leadless chip carrier) footprint based on Analog Devices LTC6655 datasheet (https://www.analog.com/media/en/technical-documentation/data-sheets/ltc6655-6655ln.pdf).
See also kicad-packages3D!942 (merged) and kicad-packages3D-source!394 (merged)