Slightly different to the standard implementation, as like the client it
considers NUL to be an unmappable character. (Furthermore, the standard
implementation isn't in StandardCharsets.)
It also provides fast methods for encoding/decoding a single byte/char
at a time.
Signed-off-by: Graham <gpe@openrs2.dev>
As I'm splitting it up into smaller modules (e.g. compress and crypto) I
think util is a more appropriate name for the remainder.
Signed-off-by: Graham <gpe@openrs2.dev>
Graham