[Wpf] Add WebView Emulation mode example
[Wpf] Add WebView Emulation mode example

Add an example on how to set different IE emulation
modes for the WPF based WebView backend.

lytico/xwt,hwthomas/xwt,akrisiun/xwt,cra0zy/xwt,antmicro/xwt,hamekoz/xwt,TheBrainTech/xwt,residuum/xwt,mono/xwt