Add the "Home" app

This PR adds the "Home" app: 
It adds a shortcut on your tablet to teleport home.

applications/home/app_home.js

@@ -0,0 +1,61 @@
+"use strict";
+//
+//  app_home.js
+//
+//  Created by Alezia Kurdis, February 12th, 2022.
+//  Copyright 2022 Overte e.V.
+//
+//  Fast go home button.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+(function() {
+    var jsMainFileName = "app_home.js";
+    var ROOT = Script.resolvePath('').split(jsMainFileName)[0];
+    var teleporterSoundFileUrl = ROOT + "tpsound.mp3";
+    var teleportSound = SoundCache.getSound(teleporterSoundFileUrl);
+    var APP_NAME = "HOME"; 
+    var APP_ICON_INACTIVE = ROOT + "appicon_i.png";
+    var APP_ICON_ACTIVE = ROOT + "appicon_a.png";
+    
+    var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
+
+    var button = tablet.addButton({
+        text: APP_NAME,
+        icon: APP_ICON_INACTIVE,
+        activeIcon: APP_ICON_ACTIVE,
+        sortOrder: 3
+    });
+
+
+    function clicked(){
+        button.editProperties({
+            isActive: true
+        });
+        playSound();
+        var timer = Script.setTimeout(function () {
+            if (LocationBookmarks.getHomeLocationAddress()) {
+                location.handleLookupString(LocationBookmarks.getHomeLocationAddress());
+            } else {
+                location.goToLocalSandbox();
+            }
+            button.editProperties({
+                isActive: false
+            });
+        }, 3000);
+    }
+
+    button.clicked.connect(clicked);
+
+    function cleanup() {
+        Script.scriptEnding.disconnect(cleanup);
+        tablet.removeButton(button);
+    }
+    
+    function playSound() {
+        Audio.playSound(teleportSound, { volume: 0.3, localOnly: true });
+    };    
+    
+    Script.scriptEnding.connect(cleanup);
+}());

applications/metadata.js

@@ -67,7 +67,7 @@ var metadata = { "applications":
             "isActive": true,
             "directory": "radar",
             "name": "Radar",
-            "description": "Show where people are and teleport in the domain. <a href='http://ctrlaltstudio.com/vircadia/radar' target=`_blank`>More info...</a>",
+            "description": "Show where people are and teleport in the domain.",
             "jsfile": "radar/radar.js",
             "icon": "radar/assets/radar-i.svg",
             "caption": "RADAR"
@@ -85,7 +85,7 @@ var metadata = { "applications":
             "isActive": true,
             "directory": "nametags",
             "name": "Nametags",
-            "description": "Display users' display names above their heads. <a href='http://ctrlaltstudio.com/vircadia/nametags' target=`_blank`>More info...</a>",
+            "description": "Display users' display names above their heads.",
             "jsfile": "nametags/nametags.js",
             "icon": "nametags/assets/nametags-i.svg",
             "caption": "NAMETAGS"
@@ -116,6 +116,15 @@ var metadata = { "applications":
             "jsfile": "odometer/odometer.js",
             "icon": "odometer/appicon_i.png",
             "caption": "ODOMETER"
+        },
+        {
+            "isActive": true,
+            "directory": "home",
+            "name": "Home",
+            "description": "Add a shortcut on your tablet to teleport home.",
+            "jsfile": "home/app_home.js",
+            "icon": "home/appicon_i.png",
+            "caption": "HOME"
         }
     ]
 };