Libadwaita gui (#19)

Major Update: Functional GUI Frontend!

src/frontend/gtk/client_object.rs

@@ -0,0 +1,31 @@
+mod imp;
+
+use gtk::glib::{self, Object};
+use adw::subclass::prelude::*;
+
+glib::wrapper! {
+    pub struct ClientObject(ObjectSubclass<imp::ClientObject>);
+}
+
+impl ClientObject {
+    pub fn new(hostname: String, port: u32, active: bool, position: String) -> Self {
+        Object::builder()
+            .property("hostname", hostname)
+            .property("port", port)
+            .property("active", active)
+            .property("position", position)
+            .build()
+    }
+
+    pub fn get_data(&self) -> ClientData {
+        self.imp().data.borrow().clone()
+    }
+}
+
+#[derive(Default, Clone)]
+pub struct ClientData {
+    pub hostname: String,
+    pub port: u32,
+    pub active: bool,
+    pub position: String,
+}