zymwin/cmosInverter: Using xschem, magic, ngspice and netgen to design a cmos inverter.

jam bd1ebd5c63 first commit		il y a 1 an
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inverter.ext	bd1ebd5c63 first commit	il y a 1 an
inverter.mag	bd1ebd5c63 first commit	il y a 1 an
inverter.spice	bd1ebd5c63 first commit	il y a 1 an