Add an automatic locale generator to help people make locales.

[lowlevl]

Docs:

• USB HID Scan codes for US layout: https://www.win.tue.nl/~aeb/linux/kbd/scancodes-14.html
• Note to later me: My laptop keyboard is PS/2, stop trying to get scan codes from it... These are not the same as USB HID scan codes... (PS/2 Scan codes for US layout: http://www.vetra.com/scancodes.html)