Experimental Avidemux built with Visual Studio

[mean]

There is an experimental version of avidemux built with visual studio
* It is slower than the regular version
* Some functions are disabled

Why ?
Because it may help for people complaining about crashes

If it improves stability for you, it'd be interesting to know

http://avidemux.org/nightly/vsWin64

/!\ It is experimental + the plugins are NOT compatible with the regular ones