Windows Support

[webfolderio]

Hi,

I tried to build SpicyPass GUI for Windows enviorment. It works quite well on Windows but there are two minor issues.

• Dialogs and main window is not centered.

window_position property does not work on Windows. Its better to set it programmatically.

• MenuBar/MenuItem have ugly shadow border.

How could i remove it?

SpicyPass Windows Compatibility

• As a prerequisite, build GTK for Windows.
• CMakeLists.txt requires some changes to build SpicyPass windows: CmakeLists.txt.windows
• Added WinMain to hide the Console Window.
• Major Change => Removed using namespace std;. MSVC can't build gui version if hpp files contain using namespace std. More details: Ambiguous Symbol for 'byte'
  . MS does not suggest to use namespace std for VC++ projects.

Most of the errors occurred due to msvc but I couldn't resolve the two GTK issues. I am not familiar with GTK and couldn't find a proper solution.