add ruhrohrotaryio for non-sequential pin rotaryio use on rp2040 et al #185
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The
rotaryioon at least RP2040 boards requires sequential GPIO pins which is confusing on, say, the QTPy RP2040 where pins seemingly next to each other like TX & SCL are not actually GPIO sequential. This little "fake rotaryio" driver acts likerotaryiobut lets you any two pins.