internal : add logic and ui to manage account deletion

Change-Id: I95fd4583575c3fdb1e826f92f10a28d03c74683f
Tulesp: #1244
diff --git a/SmartPanel.xaml b/SmartPanel.xaml
index bb82ec5..abab1f7 100644
--- a/SmartPanel.xaml
+++ b/SmartPanel.xaml
@@ -541,14 +541,14 @@
                     <ToggleSwitch x:Name="_upnpState_"

                                   Margin="20,10"/>

                     <!-- delete account sub menu. -->

-                    <!--<StackPanel Orientation="Horizontal" Margin="10">

+                    <StackPanel Orientation="Horizontal" Margin="10">

                         <TextBlock Style="{StaticResource TextSegoeStyle-20pt-black}"

                                    Text="&#xE74D;"/>

                         <TextBlock Text="Delete account" Margin="10"/>

                     </StackPanel>

                     <ToggleButton x:Name="_deleteAccountBtnEditionMenu_"

                             Margin="20,10"

-                            Content="Delete"/>-->

+                            Content="Delete"/>

                 </StackPanel>

                 <!-- buttons yes/no to accept the modification. -->

                 <Grid Grid.Row="1">