Initial code for implementing StatusNotifierWatcher service

src/main.rs

@@ -5,6 +5,7 @@ mod mpris;
 mod mpris_player;
 mod status_area;
 mod status_menu;
+mod status_notifier_watcher;
 mod time_button;
 mod window;
 mod x;
@@ -37,5 +38,7 @@ fn main() {
         }
     });
 
+    status_notifier_watcher::start();
+
     glib::MainLoop::new(None, false).run();
 }