A more compact Style format

Allow us to write Styles like this:
```XAML

<Set
Foreground = "#66603a"
Background = "#fff4e4"
BorderBrush = "Red"
BorderThickness = ".5,.5,1.5,1.5"
FontFamily = "Times New Roman"
FontSize= "18"
FontWeight = "Bold"
FontStyle = "Oblique"
Padding = "5"
Margin = "10" />

<Handle MouseEnter ="Control_MouseEnter"/>

```

this is more compact and more readable than:
```XAML

<Setter Property="Control.Foreground" Value="#66603a" />
<Setter Property="Control.Background" Value="#fff4e4"/>
<Setter Property="Control.BorderBrush" Value="Red"/>
<Setter Property="Control.BorderThickness" Value=".5,.5,1.5,1.5"/>
<Setter Property="Control.FontFamily" Value="Times New Roman" />
<Setter Property="Control.FontSize" Value="18" />
<Setter Property="Control.FontWeight" Value="Bold" />
<Setter Property="Control.FontStyle" Value="Oblique"/>
<Setter Property="Control.Padding" Value="5" />
<Setter Property="Control.Margin" Value="10" />

<EventSetter Event="MouseEnter" Handler="Control_MouseEnter"/>

```