format accept snowflake

[Karitham]

Currently most format's signatures accept strings, however, when formatting a user object for example, we are most likely to be using a snowflake.

I think we should change those signatures.

As an example, there is

corde/0_example/todo/todo.go

Line 58 in b03180c

s.WriteString(fmt.Sprintf("%d. %s: %s - %s\n", i, k, v.value, format.User(v.user.String())))

Which would benefit from just taking in a Snowflake.

We could also take in any, and check for string, fmt.Stringer or use fmt.Sprint, but I'm not exactly sure how that'd end up looking