space between groups of digits

[fchud]

hi.

would be nice to have a space between groups of digits for better readability.

maybe even configurable with the number of digits, like:
0: 123456
2: 12 34 56
3: 123 456

[akopachov]

Hey, thanks for the idea. Added it to the backog (#259) and will implement when schedule allows

[fchud]

sweet