A unique ID generator using a given prefix with ch_
-style.
The ID is a composition of:
```rust use puid::puid;
fn main() { let id = puid!("foo"); // foo_l2ok01bl0yq2i2ElC7zWaCR8 } ```
```rust use puid::puid;
fn main() { let id = puid!("bar", 24); // bar_l2ok1yvk1z4aOz1P7kecCTaqUGq1wgKfHGZC } ```