Thank you @Nprod.

and some more comments

Cleaned typo in language_test.h Cyrillic part.

Automatic selection was to unflexible.

Updated documentation

Updated language files to new logic and documentation.

Updated bdf2u8g.exe

short:
this script scans the first few lines from a gcode. If the line between 2 different z are greater than min_g1 this is our first layer. On this layer we search the min and max values of X and Y. With an offset we write that in a new file.

Fonts have been created with fony.exe (http://hukka.ncn.fi/?fony)

The HD44760_? fonts simulate the fonts of the character based displays.
The ISO10646 fonts provide the right size of the standard fonts.
Marlin_symbols contains only the the special symbols of the original marlin font.