The digits crate is a linked list implementation of a score card flipper. But
in this case it's with any characters you want and you can enumerate through
possibilities beyond the numeric limits intrinsic in basic numerc types like
Primary use case would be brute forcing character sequences.
A default Radix modules including most common numeric bases.
This struct acts similar to a full number with a custom numeric character base which is provided and mapped via a BaseCustom instance.
Default Radix type conversion for Digits
Reverse mutates self into a reversed self.