[scudo] Add append overloads for integers and bool

This patch adds overloads for append to support directly appending s32,
s64, u32, u64, and bool values without requiring format strings. This
simplifies usage and avoids the overhead of parsing format strings for
simple type appends.

GitOrigin-RevId: f242ad87ff4496283896ae9c492dd67e511c501a
3 files changed