Awesome project! Add support for epd7in3e would be very appreciated

[snowway]

model link

https://www.waveshare.com/product/displays/e-paper/epaper-1/7.3inch-e-paper-hat-e.htm

[RitwikSaikia]

PR #235 with implementation for 7.3inch_e-Paper_HAT_(E) has been raised.

[plxdhong]

@RitwikSaikia Has the relevant code been tested on actual devices?