Add Support WPF Targets

[celeron533]

Now this tool only take effect on Winform based windows.

Need to add WPF target window support in the future.
Link:
https://msdn.microsoft.com/en-us/library/ms633556(VS.85).aspx

[celeron533]

SetLayeredWindowAttributes
UpdateLayeredWindow

https://blogs.msdn.microsoft.com/dwayneneed/2008/09/08/transparent-windows-in-wpf/

[celeron533]

As normal WinForm is GDI+ but WPF is HW Accelerated, change the opacity of a WPF window may let it drop to software rendering and will cost a lot of performance issues.