Add initial ClapperRemote app

clapper_src/appRemote.js

@@ -0,0 +1,17 @@
+const { GObject } = imports.gi;
+const { AppBase } = imports.clapper_src.appBase;
+const { HeaderBarBase } = imports.clapper_src.headerbarBase;
+
+var AppRemote = GObject.registerClass(
+class ClapperAppRemote extends AppBase
+{
+    vfunc_startup()
+    {
+        super.vfunc_startup();
+
+        let headerBar = new HeaderBarBase(this.active_window);
+        this.active_window.set_titlebar(headerBar);
+
+        this.active_window.maximize();
+    }
+});