Support for SparkFun Teensy MicroMod

[MaffooClock]

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Since this library supports Teensy 4.x, I assume it would seamlessly support SparkFun's MicroMod implementation of the Teensy as well.

If so, it looks like the only change needed would be to append || defined ARDUINO_TEENSY_MICROMOD to lines 28, 82, 118, and 161 of TeensyID.cpp.

Of course this makes it compile, but I haven't yet tested it.

[sstaub]

Can you test please?

[MaffooClock]

I have the hardware available, just haven't had a chance to touch it (been occupied with porting my existing Teensy 4.1 code). I'll whip up a test as soon as I can, and if it works, I'll submit a PR.

[sstaub]

Thank you