fix: misuse the callback in z_info

[YuanYuYuan]

This PR has partially fixed #601. The remaining task is aligning the ZID order with the Rust side. Despite the same underlying[u8; 16], we display the ZID in LSB order in Rust. That's why we saw a mismatch (actually they are the reverse of each other).

1. Modify the example z_info (and any other usages) to print ZID reversely.
2. Provide a zid_to_string function to avoid any confusion.
3. Change LSB order formatting in the uhlc crate.