[CB-3677] [CB-3676] Added windows phone splashscreen support

plugin.xml

@@ -40,4 +40,28 @@
         </config-file>
     </platform>
 
+    <!-- wp7 -->
+    <platform name="wp7">
+        <config-file target="config.xml" parent="/*">
+            <feature name="SplashScreen">
+                <param name="wp-package" value="SplashScreen"/>
+            </feature>
+        </config-file>
+
+        <source-file src="src/wp/SplashScreen.cs" />
+
+    </platform>
+
+    <!-- wp8 -->
+    <platform name="wp8">
+        <config-file target="config.xml" parent="/*">
+            <feature name="SplashScreen">
+                <param name="wp-package" value="SplashScreen"/>
+            </feature>
+        </config-file>
+
+        <source-file src="src/wp/SplashScreen.cs" />
+
+    </platform>
+
 </plugin>

src/wp/SplashScreen.cs

@@ -0,0 +1,70 @@
+/*  
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+    
+    http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+using System;
+using System.Net;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Shapes;
+using Microsoft.Phone.Info;
+using System.Windows.Controls.Primitives;
+using System.Diagnostics;
+using my.test.project;
+using System.Windows.Media.Imaging;
+
+namespace WPCordovaClassLib.Cordova.Commands
+{
+    /// <summary>
+    /// Listens for changes to the state of the battery on the device.
+    /// Currently only the "isPlugged" parameter available via native APIs.
+    /// </summary>
+    public class SplashScreen : BaseCommand
+    {
+        private Popup popup;
+
+        public SplashScreen()
+        {
+            Image SplashScreen = new Image();
+            BitmapImage splash_image = new BitmapImage();
+            splash_image.SetSource(Application.GetResourceStream(new Uri(@"SplashScreenImage.jpg", UriKind.Relative)).Stream);
+            SplashScreen.Source = splash_image;
+
+            // Instansiate the popup and set the Child property of Popup to SplashScreen
+            this.popup = new Popup() {IsOpen = false, Child = SplashScreen };
+            // Orient the popup accordingly
+            this.popup.HorizontalAlignment = HorizontalAlignment.Stretch;
+            this.popup.VerticalAlignment = VerticalAlignment.Center;
+        }
+
+        public void show(string options)
+        {
+            Deployment.Current.Dispatcher.BeginInvoke(() =>
+            {
+                this.popup.IsOpen = true;
+            }); 
+        }
+        public void hide(string options)
+        {
+            Deployment.Current.Dispatcher.BeginInvoke(() =>
+            {
+                this.popup.IsOpen = false;
+            });
+        }
+    }
+}