*Changed the SPI CS pin to work under automatic or manual control. This allows it to work when CS is controlled by SPI, or when it is controlled manually. We don't want it to fail in the configuration the Pimoroni python driver requires.
*Changed the wait() routine to use a 10ms debounce on WaitForEdge() as the python driver does.
*If the BUSY line is high on entry to wait to go directly to a timed wait as the python driver does.
*Fixed errors in the palette definitions. Removed extra memory allocation.
It is a 7 colour ePaper/eInk HAT that comes with 5.7" (600 x 448 pixel) or 4" (640 x 400 pixel).
Refactors the existing 3 color Inky and adds additional fields to
auto-detect via EEPROM.
Tested with 5.7" version.
Brian Charous