* Just set LED_BUILTIN universally to -1, as we don't use it.
* LUD_BUILTIN workarounds
* Squash the LED_BUILTINs that sneaked in
* Don't kill valid pin derfine
* Add the Heltec v4 expansion box.
* Change heltec-v4-oled to heltec-v4.
* Add touchscreen to I2C scanning.
* Add reset and busy pins to the ST7789.
* Ignore the touch interrupt pin and extend the sleep time to 1 hour.
* Remove the default sleep function.
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Co-authored-by: Ben Meadors <benmmeadors@gmail.com>