make the panic message more useful (#437)

when panic happend, previouse panic info:
panic occurred: PanicHookInfo { payload: Any { .. }, location: Location { file: "easytier/src/easytier-core.rs", line: 680, col: 9 }, can_unwind: true, force_no_backtrace: false }

the new panic info:

panic occurred: payload:launcher error: "anyhow error: failed to add listener tcp://0.0.0.0:11010", location: Some(Location { file: "easytier/src/easytier-core.rs", line: 680, col: 9 })
backtrace saved to easytier-panic.log

easytier/src/easytier-cli.rs

@@ -29,6 +29,8 @@ use easytier::{
     utils::{cost_to_str, float_to_str, PeerRoutePair},
 };
 
+rust_i18n::i18n!("locales", fallback = "en");
+
 #[derive(Parser, Debug)]
 #[command(name = "easytier-cli", author, version = EASYTIER_VERSION, about, long_about = None)]
 struct Cli {