Font base data

Use https://github.com/ayoy/font2bytes to convert the font to binary and import it into you Arduino\libraries folder esp32-waveshare-epd\src\bahn*.cpp (it needs to be tweaked slightly).

./f2b -h 70 -w 47 bahn.png > bahn_big.cpp
./f2b -h 44 -w 29 bahn2.png > bahn_mid.cpp
./f2b -h 22 -w 13 bahn3.png > bahn_sml.cpp

Author: davidkreidler