locales: introduce Internationalization / Locales

* using crate locales

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

src/main.rs

@@ -1,12 +1,21 @@
 #[macro_use]
 extern crate clap;
+extern crate locales;
+
 use clap::App;
+use locales::t;
 
 fn main() {
-    println!("Parsing arguments ...");
+    // set locale
+    let lang= "de";
+
     // handle commandline arguments with clap (relative path to cli.yml)
+    let res = t!("parse.arguments", lang);
+    println!("{}", &res);
+
     let yaml = load_yaml!("cli.yml");
     let _matches = App::from_yaml(yaml).get_matches();
 
-    println!("Starting program logic ...");
+    let res = t!("main.start", lang);
+    println!("{}", &res);
 }