Added dot-matrix LCD ST7920
Added dot-matrix LCD ST7920 (https://pdf1.alldatasheet.com/datasheet-pdf/view/326219/SITRONIX/ST7920/+225_3AVPhySPPlbeZa.Hwz+/datasheet.pdf)
The manufacturer website does not provide a datasheet. I hope, I can use this link as an alternative.
The merge request for the footprint of the 128x64 dots model is here: kicad-footprints!2697
Edited by Thomas Maaß