fix #53 - make whole screen scrollable

UserInterface/Views/MainWindow.axaml

@@ -12,8 +12,8 @@
   <Design.DataContext>
     <vm:MainWindowViewModel/>
   </Design.DataContext>
-  <Grid ColumnDefinitions="Auto,1*,Auto" RowDefinitions="Auto,Auto,Auto"  Margin="30">
-
+  <ScrollViewer Height="700">
+  <Grid ColumnDefinitions="Auto,1*,Auto" RowDefinitions="Auto,Auto" Margin="30" VerticalAlignment="Stretch">
     <views:BrokerSettings Grid.Column="0" Grid.Row="0" Margin="10 0" Grid.RowSpan="2" Background="#2D2D30"/>
     <views:SensorSettings Grid.Column="1" Grid.Row="0" Margin="10 0" Background="#2D2D30"/>
     <views:CommandSettings Grid.Column="1" Grid.Row="1" Margin="0 10 0 0" Background="#2D2D30"/>
@@ -28,6 +28,7 @@
     <CheckBox Content="Col2Row0" Grid.Row="0" Grid.Column="2"/>
     <Button Content="SpansCol1-2Row1-2" Grid.Row="1" Grid.Column="1" Grid.RowSpan="2" Grid.ColumnSpan="2"/>-->
   </Grid>
+  </ScrollViewer>
   <!--<TextBlock Text="{Binding Greeting}" HorizontalAlignment="Center" VerticalAlignment="Center"/>-->