font_conv not converting some chars correctly

[NZjeux26]

the font_conv command is not converting some chars from ttf to pngs correctly. Notables are upper case H, M, N W and V. The width of the png seems to be half of that of the standard the conversion makes for the rest of the characters.

M and W seem the most consistent across ttf files.

[tehKaiN]

Funny that after fixing the #202 it seemed to be working fine for me 👀